Question 1

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

Accepted Answer

photosynthesis

Answer

respiration

Answer

digestion

Answer

fermentation

Question 2

What part of the cell is responsible for controlling its activities?

Accepted Answer

nucleus

Answer

cytoplasm

Answer

cell membrane

Answer

ribosomes

Question 3

Which gas do humans need to breathe in order to live?

Accepted Answer

oxygen

Answer

helium

Answer

carbon dioxide

Answer

nitrogen

Question 4

What is the main source of energy for the Earth?

Accepted Answer

the Sun

Answer

ocean currents

Answer

volcanoes

Answer

the Moon

Question 5

Which planet is known as the Red Planet?

Accepted Answer

Mars

Answer

Saturn

Answer

Jupiter

Answer

Venus

Question 6

What substance do animals exhale as a waste product of respiration?

Accepted Answer

carbon dioxide

Answer

nitrogen

Answer

oxygen

Answer

hydrogen

Question 7

Which of the following is a force that pulls objects toward the Earth?

Accepted Answer

gravity

Answer

tension

Answer

friction

Answer

magnetism

Question 8

What is the boiling point of water at sea level in degrees Celsius?

Accepted Answer

100

Answer

120

Answer

80

Answer

90

Question 9

What type of animal lays eggs?

Accepted Answer

reptiles

Answer

mammals

Answer

amphibians

Answer

birds

Question 10

What is the basic unit of life?

Accepted Answer

cell

Answer

organism

Answer

organ

Answer

tissue

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