SCIENCE JUNIOR QUIZ prelims

The pictures show two ways of traveling around town. Which way of traveling is better for the environment?

• bicycle

• motorbike

Plateaus, valleys, canyons, and mountains are all examples of _____.

• highlands

• mantle areas

• landforms

• hydrosphere

Look at the diagram and tell how you can make this circuit work.

• close the switch

• add one more bulb

• open the switch

Scientists are able to tell which fossils are the oldest by looking at the bedrock. Which layer contains the youngest fossils?

• A

• B

• C

• D

The hardened remains of a living thing that died long ago is called______.

To stop a drum from producing sound, you would _____.

• hit it harder

• hit it softer

• stop it from vibrating

• place it in water

What is the Sun made of?

• solid

• liquid

• gas

A metal spoon and a wooden spoon are used to stir a pot of hot soup.After a few minutes, the metal spoon feels hotter than the wooden spoon.What explains this?

• Metal is always hotter than wood

• Metal conducts heat better than wood

• Metal heats up the water better than the wood

Why astronauts in space cannot talk to each other unless they use a radio to speak back and forth?

• The air is too thick to carry sound waves efficiently

• The force of gravity is too strong to allow

  sound waves to travel.

• There is no air in space, so there is no medium to

  carry sound waves.

A fire truck's siren and flashing lights are examples of __ and __ energy