Free Printable Math Leap Review

1.

What is the chemical formula for water?

a)

$H_2O$

b)

$CO_2$

c)

$O_2$

d)

$H_2SO_4$

2.

Which planet is known as the Red Planet?

a)

Earth

b)

Mars

c)

Jupiter

d)

Venus

3.

What is the process by which plants make their food using sunlight?

a)

Photosynthesis

b)

Respiration

c)

Transpiration

d)

Digestion

4.

What is the powerhouse of the cell?

a)

Nucleus

b)

Mitochondria

c)

Ribosome

d)

Chloroplast

5.

What is the boiling point of water at sea level?

a)

100°C

b)

0°C

c)

50°C

d)

200°C

6.

Which gas is most abundant in the Earth's atmosphere?

a)

Oxygen

b)

Nitrogen

c)

Carbon Dioxide

d)

Hydrogen

7.

What is the hardest natural substance on Earth?

a)

Gold

b)

Iron

c)

Diamond

d)

Silver

8.

What is the main gas found in the air we breathe?

a)

Oxygen

b)

Carbon Dioxide

c)

Nitrogen

d)

Helium

9.

What is the chemical symbol for gold?

a)

Au

b)

Ag

c)

Pb

d)

Fe

10.

What force keeps the planets in orbit around the sun?

a)

Magnetism

b)

Gravity

c)

Friction

d)

Electricity

11.

What is the largest organ in the human body?

a)

Heart

b)

Liver

c)

Skin

d)

Brain

12.

What is the basic unit of life?

a)

Organ

b)

Tissue

c)

Cell

d)

Organism

13.

What is the speed of light in a vacuum?

a)

$3 \times 10^8$ m/s

b)

$1.5 \times 10^8$ m/s

c)

$2.5 \times 10^8$ m/s

d)

$3.5 \times 10^8$ m/s

14.

What is the chemical formula for table salt?

a)

$NaCl$

b)

$KCl$

c)

$CaCO_3$

d)

$MgSO_4$

15.

What is the primary source of energy for the Earth?

a)

The Moon

b)

The Sun

c)

The Stars

d)

The Oceans

16.

What is the most abundant element in the universe?

a)

Oxygen

b)

Carbon

c)

Hydrogen

d)

Helium

17.

What is the process by which a liquid changes into a gas?

a)

Condensation

b)

Evaporation

c)

Sublimation

d)

Freezing

18.

What is the chemical symbol for iron?

a)

Fe

b)

Ir

c)

In

d)

I

19.

What is the main component of the sun?

a)

Oxygen

b)

Carbon

c)

Hydrogen

d)

Nitrogen

20.

What is the term for animals that eat only plants?

a)

Carnivores

b)

Herbivores

c)

Omnivores

d)

Insectivores

21.

What is the smallest particle of an element that retains its chemical properties?

a)

Molecule

b)

Atom

c)

Electron

d)

Proton

22.

What is the chemical formula for carbon dioxide?

a)

$CO_2$

b)

$CH_4$

c)

$C_2H_6$

d)

$C_6H_{12}O_6$

23.

What is the process by which a solid changes directly into a gas?

a)

Sublimation

b)

Evaporation

c)

Condensation

d)

Melting

24.

What is the most common gas in the Earth's atmosphere?

a)

Oxygen

b)

Carbon Dioxide

c)

Nitrogen

d)

Hydrogen

25.

What is the term for the amount of matter in an object?

a)

Weight

b)

Volume

c)

Density

d)

Mass

Math Leap Review

Total questions: 25

Worksheet time: 25mins

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