Revision---ch.1-2

Which activity do most people do during daytime?

• hiking

• sleeping

• watching TV

• waiting for buses

Which of the following is the feature of daytime?

• Fewer city lights

• More city lights

• Fewer outdoor activities

• Stars are bright

Which of the following is the feature of night-time?

• More city lights

• Fewer city lights

• We can see the sun.

• More outdoor activities

Why did Thomas Edison want to improve the light bulbs?

• They broke easily

• They were expensive

• They were not bright

• They were not beautiful

How many materials did Thomas Edison use for testing the light bulbs?

• More than 6000

• about 100

• less than 1000

• about 2000

Which job works during daytime and night-time?

• Policemen

• Street cleaners

• Teachers

• Postmen

Which is a nocturnal animal?

• An owl

• A bear

• A dog

• A butterfly

Which is a nocturnal animal?

• A leopard cat

• A whale

• A tortoise

• A duck

Which animal is active at night?

• A bat

• A shark

• A horse

• A bee

How can bats fly safely at night?

• They make sounds when they fly.

• They touch the wall when they fly.

• They smell the walls.

• They taste the walls.