Year 4 Science Quiz Questions And Answers!
Are you a year four student or a parent of a 4 year-old student who needs to practice for the next science test? With these science quiz questions and answers, you can now check how well you have studied during your science classes. This quiz is a quick review of what the student has learned about science and if they remember that. While playing this quiz, you will also get to learn many new things. So, take the quiz, check your knowledge, learn something new and have fun!
Questions and Answers
- 1.
Which of the following animals does NOT have a skeleton?
- A.
Dog
- B.
Fish
- C.
Snail
- D.
Horse
Correct Answer
C. SnailExplanation
Snail does not have a skeleton. Unlike dogs, fish, and horses, snails belong to a group of animals called mollusks, which typically have a soft body protected by a hard shell. However, this shell does not function as a skeleton in the same way that bones do. Instead, the snail's shell provides support and protection, but it is not a rigid structure that supports the body's movements. Therefore, the snail is the correct answer as it is the only animal listed that does not have a skeleton.Rate this question:
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- 2.
What does your skull protect?
- A.
Heart
- B.
Lungs
- C.
Brain
- D.
Kidney
Correct Answer
C. BrainExplanation
The skull protects the brain. The brain is a vital organ responsible for controlling the body's functions, processing information, and coordinating movement. The skull acts as a protective barrier, shielding the brain from external impact and injury.Rate this question:
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- 3.
Does a snail have a backbone?
- A.
Yes, it is a vertebrate.
- B.
No, it is an invertebrate.
Correct Answer
B. No, it is an invertebrate.Explanation
Snails are classified as invertebrates because they do not have a backbone or a vertebral column. Invertebrates are animals that lack a spinal column, and instead have other structural support systems. Snails have a soft body protected by a hard shell, but they do not possess a backbone like vertebrates do. Therefore, the correct answer is that a snail is an invertebrate.Rate this question:
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- 4.
Does a frog have a backbone?
- A.
Yes, it is a vertebrate.
- B.
No, it is an invertebrate.
Correct Answer
A. Yes, it is a vertebrate.Explanation
Frogs are classified as vertebrates because they have a backbone or a spinal column. Vertebrates are animals that possess a well-developed internal skeleton made of bones or cartilage, which includes a backbone. This structure provides support and protection for the frog's body and allows for movement. Therefore, the correct answer is that a frog is a vertebrate.Rate this question:
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- 5.
Your skeleton helps you to move. What else helps you to move?
- A.
Your stomach
- B.
Your skin
- C.
Your muscles
- D.
Your brain
Correct Answer
C. Your musclesExplanation
Muscles play a crucial role in movement. They are responsible for contracting and relaxing, which allows us to move our body parts. Without muscles, we would not be able to perform any voluntary movements such as walking, running, or even picking up objects. Therefore, muscles are essential for facilitating movement in the body.Rate this question:
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- 6.
What is the primary function of muscles in the human body?
- A.
To create movement by contracting and relaxing.
- B.
To protect internal organs by forming a hard outer shell.
- C.
To store large amounts of water for the body.
- D.
To sense changes in the environment and respond.
Correct Answer
A. To create movement by contracting and relaxing.Explanation
The primary function of muscles in the human body is to create movement. Muscles work by contracting (shortening) and relaxing (lengthening), which allows different parts of the body to move. This function is essential for walking, running, jumping, and even for movements as fine as writing with a pencil.Rate this question:
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- 7.
Which 2 of these materials do NOT let heat through?
- A.
Oven gloves
- B.
The metal part of a saucepan
- C.
The wooden handle of a saucepan
- D.
All of the above
Correct Answer(s)
A. Oven gloves
C. The wooden handle of a saucepanExplanation
Oven gloves and the wooden handle of a saucepan do not let heat through. Oven gloves are designed to provide insulation and protect hands from heat, while the wooden handle of a saucepan acts as a poor conductor of heat, preventing it from transferring to the hand.Rate this question:
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- 8.
Which of the following is a good thermal conductor?
- A.
Metal
- B.
Wood
- C.
Glass
- D.
Aluminium
Correct Answer
A. MetalExplanation
Metal is a good thermal conductor because it has loosely bound electrons that can easily transfer heat energy. These free electrons can move through the metal lattice, colliding with other particles and transferring the thermal energy. This efficient transfer of heat makes metals like aluminum good conductors, allowing them to quickly and effectively distribute heat. Wood and glass, on the other hand, are poor thermal conductors due to their tightly bound particles and lack of free electrons.Rate this question:
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- 9.
A thermal conductor cannot
- A.
Keep cold things cold (like a cool box to take on a picnic containing food).
- B.
Keep warm things warm (like a flask containing soup).
- C.
Heat up cool things.
- D.
Cool up warm things.
Correct Answer
C. Heat up cool things.Explanation
A thermal conductor is a material that allows heat to transfer easily through it. It is not designed to heat up cool things, but rather to facilitate the transfer of heat from a warmer object to a cooler object. Therefore, it is not capable of heating up cool things.Rate this question:
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- 10.
How do you measure temperature?
- A.
With a microscope
- B.
With a thermometer
- C.
With a telescope
- D.
With telescope
Correct Answer
B. With a thermometerExplanation
A thermometer is used to measure temperature. It consists of a glass tube filled with a liquid, usually mercury or alcohol, that expands or contracts with changes in temperature. The liquid rises or falls in the tube, indicating the temperature. By observing the level of the liquid, the temperature can be measured accurately. Using a microscope or a telescope is not a suitable method for measuring temperature.Rate this question:
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- 11.
If something is -20 degrees celsius, it will be considered ______.
- A.
Hot
- B.
Cold
- C.
Normal
- D.
Very hot
Correct Answer
B. ColdExplanation
If something is -20 degrees Celsius, it will be considered cold. This is because temperatures below freezing point (0 degrees Celsius) are generally considered cold. Therefore, a temperature of -20 degrees Celsius is significantly below freezing and would be categorized as cold.Rate this question:
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- 12.
Which one of these is a liquid?
- A.
A pencil
- B.
Orange juice
- C.
Ice cube
- D.
A pen
Correct Answer
B. Orange juiceExplanation
Orange juice is a liquid because it is a fluid substance that can flow and take the shape of its container. It does not have a fixed shape or volume, and it is not solid like a pencil, ice cube, or pen.Rate this question:
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- 13.
Which one of these is solid?
- A.
Oxygen
- B.
A textbook
- C.
Fizzy lemonade
- D.
Milkshake
Correct Answer
B. A textbookExplanation
A textbook is solid because it has a definite shape and volume. Unlike oxygen, which is a gas, fizzy lemonade and milkshake, which are liquids, a textbook maintains its form and does not flow or take the shape of its container.Rate this question:
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- 14.
What is the process called to turn an ice cube into liquid water? (Solid to a liquid)
- A.
Freezing
- B.
Melting
- C.
Dissolving
- D.
Evaporation
Correct Answer
B. MeltingExplanation
Melting is the correct answer because it refers to the process of turning a solid, such as an ice cube, into a liquid, in this case, water. The process of melting occurs when heat is applied to the solid, causing the particles to gain energy and move more rapidly, breaking the bonds that hold them together in a solid state. As a result, the ice cube transitions into a liquid state, becoming liquid water.Rate this question:
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- 15.
What is the process called to turn water into an ice cube (liquid to a solid)?
- A.
Freezing
- B.
Melting
- C.
Dissolving
- D.
Condensation
Correct Answer
A. FreezingExplanation
Freezing is the process of turning water from a liquid to a solid state, resulting in the formation of an ice cube. During freezing, the water molecules lose energy and slow down, causing them to arrange themselves into a solid structure. This process occurs when the temperature of the water drops below its freezing point, which is 0 degrees Celsius or 32 degrees Fahrenheit.Rate this question:
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- 16.
How can I separate the stones in my soil?
- A.
Using a magnet
- B.
Using a sieve
- C.
Using a filter paper
- D.
None of the above
Correct Answer
B. Using a sieveExplanation
Using a sieve is the correct answer because it is a common and effective method for separating stones from soil. A sieve consists of a mesh screen that allows smaller particles like soil to pass through while retaining larger particles like stones. By pouring the soil onto the sieve and shaking it, the stones will be left behind on top of the sieve while the soil falls through. This process helps to remove unwanted stones from the soil, making it more suitable for gardening or other purposes.Rate this question:
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- 17.
Which of these materials CANNOT dissolve into water?
- A.
Coffee
- B.
Sand
- C.
Salt
- D.
Sugar
Correct Answer
B. SandExplanation
Sand cannot dissolve into water because it is composed of large, solid particles that do not have the ability to separate and disperse into the water molecules. In contrast, coffee, salt, and sugar are all soluble in water, meaning they can dissolve and form a homogeneous mixture with the water molecules.Rate this question:
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Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Apr 18, 2024Quiz Edited by
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Feb 26, 2010Quiz Created by
Melknightadams
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