A General Science Review Quiz

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A General Science Review Quiz - Quiz

Plant and animal reproduction are fascinating topics to learn because they help understand how continuity is adhered to. This is luckily one thing that science sheds light on. Do you regard yourself as someone with unlimited basic science knowledge? Put your answer to the test through this quiz.


Questions and Answers
  • 1. 

    Which animal would have the most difficulty having offspring during a drought?

    • A.

      A bird

    • B.

      A cow

    • C.

      A frog

    • D.

      A deer

    Correct Answer
    C. A frog
    Explanation
    During a drought, water sources become scarce, which can pose a challenge for animals to reproduce. Frogs, being amphibians, rely on water for their reproduction process. They lay eggs in water, and the tadpoles that hatch from these eggs also need water to survive and develop. Therefore, during a drought when water is limited or completely dried up, frogs would have the most difficulty having offspring compared to other animals listed.

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  • 2. 

    Earth's nitrogen moves in a cycle that includes:

    • A.

      The atmosphere and soil only

    • B.

      Plants and animals only

    • C.

      The atmosphere and plants only

    • D.

      The atmosphere, soil, plants, and animals

    Correct Answer
    D. The atmosphere, soil, plants, and animals
    Explanation
    Nitrogen moves in a cycle that includes the atmosphere, soil, plants, and animals. Nitrogen gas in the atmosphere is converted into a usable form by bacteria through a process called nitrogen fixation. This fixed nitrogen is then taken up by plants through their roots and used to build proteins and other essential molecules. Animals obtain nitrogen by consuming plants or other animals. When plants and animals die, decomposers break down their organic matter and release nitrogen back into the soil. This nitrogen can then be used again by plants, completing the cycle.

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  • 3. 

    Which material does not let light pass through it?

    • A.

      Water

    • B.

      Glass

    • C.

      Air

    • D.

      Aluminum foil

    Correct Answer
    D. Aluminum foil
    Explanation
    Aluminum foil does not let light pass through it because it is an opaque material. Unlike water, glass, and air, which are transparent or translucent, aluminum foil is a reflective and opaque material that blocks the passage of light. When light hits the surface of aluminum foil, it is reflected back, preventing it from passing through the material.

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  • 4. 

    By counting the number of frogs and damselflies that live near a pond, which of the following can be compared?

    • A.

      Two ecosystems

    • B.

      Two populations

    • C.

      Two communities

    • D.

      Two predators

    Correct Answer
    B. Two populations
    Explanation
    The question asks about comparing the number of frogs and damselflies near a pond. This suggests that the focus is on comparing the number of individuals within a specific species in a given area. Therefore, the correct answer is "two populations" as it refers to comparing the populations of frogs and damselflies near the pond.

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  • 5. 

    Water is cycled between the land, oceans and lakes, and the air. When water falls from the atmosphere, it is called:

    • A.

      Runoff

    • B.

      Precipitation

    • C.

      Condensation

    • D.

      Evaporation

    Correct Answer
    B. Precipitation
    Explanation
    Precipitation is the correct answer because it refers to the process of water falling from the atmosphere to the Earth's surface in the form of rain, snow, sleet, or hail. This includes any form of water that is condensed from the atmosphere and becomes too heavy to remain suspended, resulting in its release and subsequent precipitation onto the land, oceans, lakes, or any other surface.

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  • 6. 

    What is the role of the nucleus in a cell?

    • A.

      To take in sunlight

    • B.

      To store food for the cell

    • C.

      To make proteins move out of the cell

    • D.

      To control all cell activities

    Correct Answer
    D. To control all cell activities
    Explanation
    The nucleus is the control center of the cell. It contains the cell's DNA, which carries the instructions for all cell activities. The nucleus regulates gene expression, controls the synthesis of proteins, and coordinates cell division. It also plays a crucial role in maintaining the integrity and stability of the cell's genetic material. Therefore, the correct answer is that the nucleus controls all cell activities.

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  • 7. 

    What are granite, basalt, marble, and quartz?

    • A.

      They are planets

    • B.

      They are elements

    • C.

      They are minerals

    • D.

      They are animals

    Correct Answer
    C. They are minerals
    Explanation
    Granite, basalt, marble, and quartz are classified as minerals. Minerals are naturally occurring inorganic substances with a specific chemical composition and a crystalline structure. These four substances are commonly found in the Earth's crust and are widely used in construction, decorative purposes, and various industries.

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  • 8. 

    Which surface cannot reflect light?

    • A.

      Mirror

    • B.

      Snow

    • C.

      Water

    • D.

      Dirt

    Correct Answer
    D. Dirt
    Explanation
    Dirt cannot reflect light because it is not a smooth or polished surface like a mirror. Mirrors are specifically designed to reflect light, while snow and water can also reflect light due to their smooth and reflective surfaces. However, dirt is rough and uneven, which causes the light to scatter and be absorbed rather than being reflected. Therefore, dirt is unable to reflect light.

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  • 9. 

    In any food web, which group of organisms has the most energy?

    • A.

      Producers

    • B.

      Herbivores

    • C.

      Carnivores

    • D.

      Scavengers

    Correct Answer
    A. Producers
    Explanation
    Producers, such as plants and algae, have the most energy in any food web. They are able to convert sunlight into chemical energy through the process of photosynthesis. This energy is then passed on to herbivores, which consume the producers. As energy moves up the food chain, each level loses some energy in the form of heat and waste, so the producers have the highest energy level compared to herbivores, carnivores, and scavengers.

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  • 10. 

    Which is an important nonliving part of an ecosystem?

    • A.

      Fungus

    • B.

      Plants

    • C.

      Water

    • D.

      Bacteria

    Correct Answer
    C. Water
    Explanation
    Water is an important nonliving part of an ecosystem because it plays a crucial role in sustaining life. It is essential for the survival of all living organisms as it is involved in various biological processes such as hydration, nutrient transport, and waste removal. Water also serves as a habitat for many aquatic organisms and supports the growth of plants, which are the primary producers in most ecosystems. Additionally, water acts as a medium for chemical reactions and helps regulate temperature, making it a vital component of the ecosystem.

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  • 11. 

    What is the star that is at the center of the Earth's solar system?

    • A.

      The North Star

    • B.

      The Sun

    • C.

      The Moon

    • D.

      Venus

    Correct Answer
    B. The Sun
    Explanation
    The correct answer is the Sun. The Sun is at the center of Earth's solar system and it is a star. It provides heat, light, and energy to the Earth. The Sun is much larger than any other celestial body in our solar system and its gravitational pull keeps all the planets, including Earth, in orbit around it. The North Star, the Moon, and Venus are not at the center of the solar system and do not play the same role as the Sun.

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  • 12. 

    The green parts of a plant help it to make food. This is because they contain:

    • A.

      Roots

    • B.

      Stems

    • C.

      Nitrogen

    • D.

      Chlorophyll

    Correct Answer
    D. Chlorophyll
    Explanation
    Chlorophyll is the correct answer because it is the pigment found in the green parts of a plant, such as the leaves. It plays a crucial role in photosynthesis, the process by which plants convert sunlight into energy. Chlorophyll absorbs light energy and uses it to synthesize glucose, which is the plant's source of food. Without chlorophyll, plants would not be able to produce food and survive.

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  • 13. 

    All matter is made up of tiny particles called:

    • A.

      Sand

    • B.

      Organisms

    • C.

      Mitochondria

    • D.

      Atoms

    Correct Answer
    D. Atoms
    Explanation
    Atoms are the correct answer because they are the fundamental building blocks of all matter. They are the smallest units of a chemical element that retain the chemical properties of that element. Atoms combine together to form molecules and compounds, and they are responsible for the structure and behavior of all substances. This concept is a fundamental principle in chemistry and physics, and understanding atoms is crucial in explaining the properties and interactions of matter.

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  • 14. 

    What does a plant cell have that an animal cell does not?

    • A.

      Nucleus

    • B.

      Mitochondria

    • C.

      Cell wall

    • D.

      Cell membrane

    Correct Answer
    C. Cell wall
    Explanation
    A plant cell has a cell wall, which is a rigid layer surrounding the cell membrane. This cell wall provides structural support and protection to the plant cell, giving it a fixed shape and preventing it from bursting under pressure. Animal cells, on the other hand, do not have a cell wall. They only have a cell membrane, which is a flexible barrier that encloses the cell and regulates the movement of substances in and out of the cell.

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  • 15. 

    One day passes each time Earth:

    • A.

      Turns all the way around once

    • B.

      Goes one time around the Sun

    • C.

      Goes one time around the Moon

    • D.

      Spins around 24 times

    Correct Answer
    A. Turns all the way around once
    Explanation
    The correct answer is "turns all the way around once." This refers to the rotation of the Earth on its axis, which takes approximately 24 hours to complete. This rotation causes day and night as different parts of the Earth are exposed to the Sun's light.

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  • 16. 

    When a liquid turns into a gas, it is:

    • A.

      Freezing

    • B.

      Melting

    • C.

      Condensing

    • D.

      Evaporating

    Correct Answer
    D. Evaporating
    Explanation
    When a liquid turns into a gas, it is evaporating. Evaporation is the process in which a liquid changes into a gas at a temperature below its boiling point. This occurs when the molecules of the liquid gain enough energy to break free from the surface and form a vapor. Evaporation commonly happens at the surface of a liquid, such as when water evaporates from a puddle or when sweat evaporates from our skin.

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  • 17. 

    Samuel placed a glass of ice water on the table. When he picked up his glass he noticed a weting where the glass used to be. What process caused this to occur?

    • A.

      Evaporation

    • B.

      Precipitation

    • C.

      Condensation

    • D.

      Glaciation

    Correct Answer
    C. Condensation
    Explanation
    When Samuel placed the glass of ice water on the table, the cold temperature of the glass caused the surrounding air to cool down. As a result, the water vapor in the air near the glass cooled down and turned into liquid water droplets. This process is known as condensation. The water droplets then accumulated on the surface of the table, creating the wetting that Samuel noticed when he picked up his glass.

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  • 18. 

    What part of a plant usually grow underground and capture water and nutrients for the plant?

    • A.

      Roots

    • B.

      Stems

    • C.

      Flowers

    • D.

      Leaves

    Correct Answer
    A. Roots
    Explanation
    Roots are the part of a plant that usually grow underground and are responsible for capturing water and nutrients for the plant. They anchor the plant in the soil and absorb water and minerals from the ground, which are then transported to the rest of the plant. Additionally, roots also store food reserves for the plant. Stems, flowers, and leaves have their own specific functions, but they do not typically serve the same purpose as roots in terms of water and nutrient absorption.

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  • 19. 

    What do a rabbit, a horse, and a field mouse have in common?

    • A.

      They are always brown.

    • B.

      They are all carnivores.

    • C.

      They all live in swamps.

    • D.

      They are all herbivores.

    Correct Answer
    D. They are all herbivores.
    Explanation
    The explanation for the correct answer, "They are all herbivores," is that all three animals mentioned - rabbit, horse, and field mouse - primarily consume plant material as their main source of nutrition. Herbivores are animals that feed on plants, such as grass, leaves, and other vegetation. This makes them distinct from carnivores, which eat meat, and indicates that the rabbit, horse, and field mouse share the common characteristic of being herbivorous.

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  • 20. 

    To describe a mineral as shiny or dull is to describe its:

    • A.

      Luster

    • B.

      Color

    • C.

      Cleavage

    • D.

      Crystal shape

    Correct Answer
    A. Luster
    Explanation
    Luster refers to the way light interacts with the surface of a mineral. It describes how shiny or dull the mineral appears. So, when we describe a mineral as shiny or dull, we are actually describing its luster.

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  • 21. 

    The part of Earth that is a hot, solid layer under extreme pressure is called:

    • A.

      The outer core

    • B.

      The mantle

    • C.

      The inner core

    • D.

      The crust

    Correct Answer
    C. The inner core
    Explanation
    The inner core is the correct answer because it is the hot, solid layer of Earth located at the very center. It is under extreme pressure due to the weight of the layers above it. The inner core is primarily composed of solid iron and nickel, and its high temperatures are maintained by the heat generated from the radioactive decay of elements.

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  • 22. 

    Of the following, which planet is the farthest from the Sun?

    • A.

      Saturn

    • B.

      Earth

    • C.

      Mercury

    • D.

      Uranus

    Correct Answer
    D. Uranus
    Explanation
    Uranus is the correct answer because it is the farthest planet from the Sun. It is located beyond Saturn, Earth, and Mercury in the solar system. Uranus is the seventh planet from the Sun and has an average distance of about 1.8 billion miles from it. Its distance from the Sun makes it the farthest planet in our solar system.

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  • 23. 

    As you get higher in altitude, air pressure:

    • A.

      Increases

    • B.

      Decreases

    • C.

      Remains the same

    • D.

      Rises

    Correct Answer
    B. Decreases
    Explanation
    As you ascend to higher altitudes, the air pressure decreases. This is because the weight of the air above decreases as you move higher, resulting in lower atmospheric pressure. The decrease in air pressure at higher altitudes can have various effects on the human body, such as difficulty in breathing and reduced oxygen levels.

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  • 24. 

    Insolation is:

    • A.

      The amount of the Sun's rays that reach the Earth

    • B.

      The angle at which the Sun's rays hit the Earth

    • C.

      The insulating effect of the atmosphere

    • D.

      Another name for the mesosphere

    Correct Answer
    A. The amount of the Sun's rays that reach the Earth
    Explanation
    Insolation refers to the amount of the Sun's rays that reach the Earth. It is a measure of the solar radiation that is received by the Earth's surface. This includes both the direct and indirect solar radiation that is received from the Sun. Insolation is an important factor in determining the Earth's climate and weather patterns, as it influences the amount of heat and energy that is received by different regions of the Earth.

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  • 25. 

    Humidity is:

    • A.

      Found mostly along shorelines

    • B.

      How much moisture the air could hold if it was warm

    • C.

      Amount of water vapor in the air

    • D.

      The amount of water vapor at ground level

    Correct Answer
    C. Amount of water vapor in the air
    Explanation
    Humidity refers to the amount of water vapor present in the air. It is a measure of the moisture content in the atmosphere. This can vary depending on factors such as temperature, pressure, and proximity to water bodies. Humidity is not limited to specific locations like shorelines, but rather exists in the air throughout different regions. Therefore, the correct answer is "amount of water vapor in the air."

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  • 26. 

    Wind is air that moves:

    • A.

      Vertically

    • B.

      In a circular pattern

    • C.

      Horizontally

    • D.

      Down

    Correct Answer
    C. Horizontally
    Explanation
    Wind is the movement of air horizontally. It is caused by the uneven heating of the Earth's surface, which creates differences in air pressure. Air moves from areas of high pressure to areas of low pressure, resulting in the horizontal movement of wind. This horizontal movement can be observed in the form of gentle breezes, strong gusts, or even powerful storms.

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  • 27. 

    A cold front occurs when cold air moves:

    • A.

      Over cold air

    • B.

      Under warm air

    • C.

      Under cold air

    • D.

      Over warm air

    Correct Answer
    B. Under warm air
    Explanation
    A cold front occurs when cold air moves under warm air. This happens because cold air is denser than warm air, causing it to sink and slide underneath the warmer air mass. As the cold air pushes the warm air upward, it creates a boundary between the two air masses. This boundary is known as a cold front, and it often brings changes in weather conditions, such as cooler temperatures, precipitation, and sometimes thunderstorms.

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  • 28. 

    The tendency of a moving object to keep moving in a straight line is called:

    • A.

      Direction

    • B.

      Inertia

    • C.

      Rotation

    • D.

      Tilt

    Correct Answer
    B. Inertia
    Explanation
    Inertia is the tendency of a moving object to keep moving in a straight line. It is a property of matter that resists changes in its motion. This means that an object in motion will continue moving in the same direction and at the same speed unless acted upon by an external force. Inertia is related to mass, as objects with more mass have more inertia and are harder to change their motion. So, the correct answer is inertia.

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  • 29. 

    Stars that form patterns in the sky are called:

    • A.

      Constellations

    • B.

      Groups

    • C.

      Light

    • D.

      Pictures

    Correct Answer
    A. Constellations
    Explanation
    Stars that form patterns in the sky are called constellations. Constellations are groups of stars that appear to form recognizable shapes or figures when viewed from Earth. These patterns have been identified and named by astronomers throughout history. Constellations are used as a way to navigate the night sky and tell stories in different cultures.

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  • 30. 

    An invisible force holding the Sun and a planet together:

    • A.

      Gravity

    • B.

      Distance

    • C.

      Matter

    • D.

      Mass

    Correct Answer
    A. Gravity
    Explanation
    Gravity is the invisible force that holds the Sun and a planet together. It is the force of attraction between two objects with mass. The greater the mass of an object, the stronger its gravitational pull. In the case of the Sun and a planet, the Sun's massive size creates a strong gravitational force that keeps the planet in orbit around it. This force of gravity is what keeps celestial bodies, like planets, moons, and stars, in their respective positions and prevents them from drifting off into space.

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  • Mar 21, 2023
    Quiz Edited by
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  • Feb 23, 2015
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    MrsWendel
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