6th grade Science practice sheet

Question 1

Which part of the brain automatically controls breathing and heartbeat?

• the cerebellum
• the pituitary gland
• the cerebrum
• the brain stem

Question 2

Which part of the inner ear changes vibrations into nerve signals?

• the eardrum
• the cornea
• the lens
• the cochlea

Question 3

Which part controls the cell's activities?

• Vacuole
• Cell wall
• Nucleus
• Chloroplast

Question 4

Which needs more energy to heat by 10 °C?

• 1 g of water
• 10 g of water
• 1 kg of water
• 100 g of water

Question 5

Why should a test be repeated several times?

• Because one is never enough fun
• To waste time
• To change the answer
• To make sure results are reliable

Question 6

A force of 10 N moves a crate 6 m in the direction of the force. How much work is done, in J?

answer boxJ

Question 7

What are hormones?

• tiny bones inside the ear
• chemical messengers carried in the blood
• electrical signals that travel along nerves
• cells that fight germs

Question 8

What are taste buds?

• sensors on the tongue that detect tastes
• tiny seeds
• cells in the eye
• parts of the ear

Question 9

Which tool lets scientists see most cells?

• A thermometer
• A balance
• A microscope
• A telescope

Question 10

Which is a good conductor of heat?

• Copper
• Air
• Wool
• Foam