Cambridge Primary Science Quiz

What is the function of the heart?

• To digest food

• To pump blood around the body

• To store oxygen

• To clean the blood

Which unit is used to measure weight?

• Kilogram

• Gram

• Newton

• Liter

Which part of the circulatory system carries oxygen-rich blood to the body?

• Veins

• Arteries

• Capillaries

• Lungs

What is a boiling point?

• The temperature at which gas becomes liquid

• The temperature at which a liquid becomes a gas

• The temperature at which a solid becomes liquid

• The temperature at which food cooks

What is the difference between evaporation and boiling?

• Evaporation is slower and occurs only at night

• Boiling happens only on the surface

• Evaporation happens on the surface; boiling involves all the particles

• They are the same process

Which of these objects has mass but no weight in space?

• A feather

• A rock

• A balloon

• All of the above

What protects the heart in the chest?

• Skin

• Ribs

• Muscles

• Lungs

What happens to your pulse rate when you exercise?

• It decreases

• It stays the same

• It increases

• It disappears

Which gas do we breathe out as waste?

• Oxygen

• Carbon dioxide

• Hydrogen

• Nitrogen

Why do astronauts feel weightless in the space station?

• There's no gravity in space

• The space station is falling around Earth

• They are too far from the Sun

• They are wearing heavy suits