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10 Questions about Science for kids | For Children

This a quiz for kids based on mixed science. Play and enjoy.

A multiple-choice quiz by kiran66. Estimated time: 3 mins.

Author
kiran66

Time
3 mins

Type
Multiple Choice

Quiz #
376,062

Updated
Dec 03 21

# Qns
10

Difficulty
Average

Avg Score
8 / 10

Plays
593

Last 3 plays: Guest 112 (6/10), Flukey (8/10), RedRobin7 (8/10).

One at a Time - Single Page - Timed Game

Question 1 of 10

1. Which of the following is not an element? Hint

Gold

Water

Rubidium

Yttrium

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Question 2 of 10

2. Which of these is not an inert (noble) gas? Hint

Radon

Argon

Xenon

Oxygen

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Question 3 of 10

3. Which of the following is a mixture? Hint

Copper sulphate in water

Hydrogen chloride (gas)

Pure water

Sodium chloride (solid)

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Question 4 of 10

4. Which of the following is not a part of the human body? Hint

Leaf

Liver

Hand

Spleen

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Question 5 of 10

5. What is the best way to avoid diseases? Hint

All of these

Eating a balanced diet

Daily exercise

Regular check ups with a medical professional

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Question 6 of 10

6. Which force doesn't act on us when we are running on a straight road? Hint

Frictional force

Centripetal force

Gravitational force

Muscular force

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Question 7 of 10

7. Why does space look black to astronauts? Hint

Astronauts become blind in space

Space looks blue to astronauts, not black

Due to their helmet

Due to lack of atmosphere

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Question 8 of 10

8. Which of the following physical quantities does not have any units? Hint

Distance

Specific gravity

Inertia

Resistance

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Question 9 of 10

9. What force is responsible for holding the moon in its place with respect to the Earth and making it orbit around the Earth? Hint

Magnetic force

Gravitational force

Muscular force

Nuclear force

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Question 10 of 10

10. Which of the following is not a part of the human respiratory system? Hint

Liver

Trachea

Lungs

Nose

Most Recent Scores

Apr 25 2024 : Guest 112: 6/10
Apr 24 2024 : Flukey: 8/10
Apr 23 2024 : RedRobin7: 8/10
Apr 17 2024 : Kat1982: 6/10
Apr 03 2024 : silvester: 8/10
Apr 03 2024 : Guest 36: 9/10

Score Distribution

Quiz Answer Key and Fun Facts

1. Which of the following is not an element?

Answer: Water

A compound is usually formed by the combination of two or more elements. Water is formed by the combination of hydrogen and oxygen i.e H2O.

2. Which of these is not an inert (noble) gas?

Answer: Oxygen

Inert gases (sometimes called noble gases) are gases whose outermost shell is filled with 8 electrons thus they can't take part in reactions. Oxygen has 2 electrons in its outermost shell hence it is not inert.

3. Which of the following is a mixture?

Answer: Copper sulphate in water

A mixture is a combination of two or more substances in any proportion. We can mix copper sulphate and water in any proportion; thus it is a mixture.

4. Which of the following is not a part of the human body?

Answer: Leaf

A leaf is a part of tree. The liver, hand and spleen are human body parts and organs.

5. What is the best way to avoid diseases?

Answer: All of these

One can prevent diseases by regular exercise that strengthens our bodies. Eating a balanced diet helps in improving body immunity and provides energy. Regular check ups of our body keep us aware about any disease that may attack us.

6. Which force doesn't act on us when we are running on a straight road?

Answer: Centripetal force

Centripetal force acts on a body when it is in circular motion. While we are running on a straight road, no centripetal force acts on us but gravitational force acts on us so that we remain on the ground and don't fly off into space. Frictional force helps us to move forward. Muscular force is exerted by our body to run.

7. Why does space look black to astronauts?

Answer: Due to lack of atmosphere

There are no particles in space like we have in the upper layers of our atmosphere which scatter light. The particles reflect the wavelength of light equal to their own size and that's why the sky looks blue because the size of the particles lies between the wavelengths of blue and indigo.

8. Which of the following physical quantities does not have any units?

Answer: Specific gravity

Specific gravity is also called relative density. It is the ratio of the density of an object to the density of water. As it is a ratio of two quantities with the same units, it doesn't have any units.

9. What force is responsible for holding the moon in its place with respect to the Earth and making it orbit around the Earth?

Answer: Gravitational force

Due to its enormous mass, the Earth exerts a gravitational force on the moon that makes it revolve around the Earth. The moon also exerts this force on Earth but the effect is negligible because the moon is much smaller.

10. Which of the following is not a part of the human respiratory system?

Answer: Liver

The human respiratory system consists of the nose, trachea and lungs. The liver is a part of the digestive system. It secretes bile that helps in the digestion of fats.

Source: Author kiran66

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