4th grade Science practice sheet

Question 1

The school bell rings. Put the steps of your response in order.

• ⚡Nerves carry a message to your brain
• 👂Your ears sense the sound
• 🧠Your brain decides what to do
• 🏃Your muscles move you to line up

Question 2

Which light source gives off light but very little heat?

• the Sun
• a campfire
• a candle
• a glow stick

Question 3

A fire alarm uses a loud, high-pitched sound. Why?

• it is quiet
• it is pretty
• it is easy to notice and warns people of danger
• it makes the fire go out

Question 4

Why do many birds fly south in autumn?

• to find snow
• to find food and warmer weather
• to sleep under water

Question 5

When you plug in a lamp, what does the electricity do?

• It stays in the plug
• It gives energy for light
• It makes the room cold

Question 6

When two cars bump, you hear a sound. The sound shows…

• nothing happened
• energy disappeared
• some energy turned into sound
• energy grew

Question 7

Computers store information as patterns of…

• colors only
• smells
• rocks
• 1s and 0s

Question 8

Rounded river rocks got smooth because…

• they melted
• wind sanded them in a day
• they were painted
• water tumbled them

Question 9

Why does California have many earthquakes?

• It has deserts
• It is in the middle of a plate
• Two plates slide past each other there
• It is very sunny

Question 10

Energy from moving water is called…

• nuclear power
• wind power
• hydropower
• solar power