Test Your Basics: Science Quiz For Class 3
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Get ready for this amazing 'Science quiz' that is designed for class 3 students. Here, you'll get the chance to test your knowledge about some of the simplest and most basic science concepts. So, if you think you are really good at science, then you must take up this quiz and see how well you can score. Sounds fun, right? So let's start then. If you like this quiz, share it with your friends. Good luck!
Grade 3 Science Questions and Answers
- 1.
What is the biggest planet?
- A.
Venus
- B.
Sun
- C.
Earth
- D.
Jupiter
Correct Answer
D. JupiterExplanation
Jupiter is the largest planet in our solar system. It has a mass that is more than twice the combined mass of all the other planets. Its size is also significantly larger than any other planet, with a diameter of about 86,881 miles. Jupiter's large size is due to its composition, primarily made up of hydrogen and helium gasses. Its immense size and mass also contribute to its strong gravitational pull, making it a dominant force in the solar system.Rate this question:
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- 2.
Which planet is also called the red planet?
- A.
Mars
- B.
Jupiter
- C.
Venus
- D.
Mercury
Correct Answer
A. MarsExplanation
Mars is known as the red planet because of its reddish appearance. The planet's surface is covered in iron oxide, commonly known as rust, which gives it a reddish color. This distinctive feature sets Mars apart from other planets in our solar system.Rate this question:
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- 3.
How does light travel when it does not hit an object?
- A.
Straight
- B.
Around
- C.
Vertical
- D.
None of the above
Correct Answer
A. StraightExplanation
Light propagates in a straight path when unobstructed by objects. This phenomenon, known as rectilinear propagation, is a fundamental principle of optics. When uninterrupted, light rays travel uniformly in a linear trajectory, demonstrating the inherent property of light to maintain a straight course in the absence of obstacles.Rate this question:
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- 4.
Which planet is the closest to the Sun?
- A.
Earth
- B.
Mars
- C.
Mercury
- D.
Venus
Correct Answer
C. MercuryExplanation
Mercury is the closest planet to the sun. It is located at an average distance of about 36 million miles from the sun. Its proximity to the sun allows it to have the shortest orbital period of any planet in our solar system, completing one orbit in about 88 Earth days. This close proximity also means that Mercury experiences extreme temperatures, with surface temperatures reaching up to 800 degrees Fahrenheit during the day and dropping to -290 degrees Fahrenheit at night.Rate this question:
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- 5.
Which of the following does not emit its own light?
- A.
Sun
- B.
Stars
- C.
Moon
- D.
Candle
Correct Answer
C. MoonExplanation
The Sun, stars, and candles are sources of light, meaning they emit their own light. The Moon, however, does not emit its own light; instead, it reflects light from the Sun. Therefore, the Moon is not a source of light but a reflector of light. This makes it the correct choice for something that is not a source of light among the options given.Rate this question:
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- 6.
Which of the following does not have mass?
- A.
Solids
- B.
Gasses
- C.
Liquids
- D.
All of them have mass
Correct Answer
D. All of them have massExplanation
All three options - solids, gasses, and liquids - have mass. Mass is a fundamental property of matter and is a measure of the amount of matter in an object. Solids, gasses, and liquids are all forms of matter, and therefore, they all have mass.Rate this question:
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- 7.
What would you have to add to solid ice to make it turn it into a liquid?
- A.
Liquid
- B.
More solid
- C.
Heat
- D.
Blender
Correct Answer
C. HeatExplanation
To turn solid ice into a liquid, heat needs to be added. Heat increases the temperature of the ice, causing the ice molecules to gain energy and move faster. As a result, the bonds holding the ice molecules together weaken, and the solid ice transforms into a liquid state.Rate this question:
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- 8.
Which of the following is not an example of a physical change?
- A.
Cutting a sandwich
- B.
Crumbling cheese
- C.
Burning toast
- D.
Slicing tomatoes
Correct Answer
C. Burning toastExplanation
Burning toast is not an example of a physical change because it involves a chemical reaction. When toast is burned, the heat causes the bread to undergo a chemical change, turning it into charred or blackened toast. Physical changes, on the other hand, do not alter the chemical composition of a substance. Cutting a sandwich, crumbling cheese, and slicing tomatoes are all examples of physical changes because they only change the appearance or form of the substances involved.Rate this question:
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- 9.
There are ________ natural states of matter.
- A.
Four
- B.
Three
- C.
Five
- D.
Eight
Correct Answer
C. FiveExplanation
Solids, liquids, gases, plasma, and Bose-Einstein condensates are the five known phases of matter. The primary distinction among these states lies in their structural properties rather than just the densities of the particles. Various factors, including particle arrangement and intermolecular forces, contribute to these differences.Rate this question:
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- 10.
Name the science term that defines the change of location or position of an object with respect to time.
- A.
Mass
- B.
Motion
- C.
Weight
- D.
Solar system
Correct Answer
B. MotionExplanation
Motion is the correct answer because it refers to the change of location or position of an object with respect to time. It is a fundamental concept in physics that describes the movement of objects in space. Motion can be described in terms of speed, velocity, and acceleration, and it plays a crucial role in understanding the behavior of objects and the laws of physics.Rate this question:
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Apr 10, 2024Quiz Edited by
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Mar 29, 2011Quiz Created by
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