Grade 4 Science practice sheet

Question 1

Which light source gives off light but very little heat?

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

Question 2

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 3

Why is a food web a better picture of nature than one food chain?

• it is only for plants
• most animals eat more than one kind of food
• it has fewer animals
• it is smaller

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

You test paper towels to see which soaks up most water. What stays the same?

• the amount of water poured
• the towel being tested
• the type of paper towel

Question 7

A wind farm has benefits and drawbacks. Which is a drawback?

• It makes oil
• It is made of paper
• Spinning blades can harm birds if poorly placed

Question 8

Which surface reflected the most light?

• black paper
• white paper
• foil

Question 9

Why do you see lightning before you hear thunder?

• sound is faster than light
• lightning is quieter
• light travels much faster than sound
• thunder is made first

Question 10

Put the food chain in order. Start with the producer.

• 🦢heron
• 🌾grass
• 🐸frog
• 🦗grasshopper