Page 4 - 新思维科学活动用书6 样章

How to use this book

How to use this book

This workbook provides questions for you to practise what you

have learned in class. There is a topic to match each topic in your

Learner’s Book. Each topic contains the following sections:

Focus
Focus: these questions help you 1 Explain why the pencil in the picture appears to be bent.

to master the basics. Cross out the incorrect alternatives in the sentences below.
The pencil is bent because of reflection / refraction.
A ray of light passes from the pencil through the water /
air to the glass. The ray bends / straightens when it passes
through the glass to the air / water and into our eyes.
We see the bent pencil as a trick / an optical illusion.

Practice: these questions help Practice

you to become more confident in 3 Circle the letter of the correct answer to each of the following questions.
a Your heart pumps blood through the body. This process is called …
using what you have learned. A heartbeat
B circulation
C pulsing
b The circulatory system is made up of the …
A heart only
B heart and blood vessels
C heart, blood vessels and blood

Challenge
4 Class 6 measured the pulse rate and breathing rate of 10 people after they had
jogged on the spot for three minutes. Here are their results.
Challenge: these questions will
Person Breathing rate in Pulse rate in
make you think more deeply. breaths per minute heartbeats per minute
1 30 90
2 50 120
3 35 102
4 32 95
5 26 100
6 40 110
7 45 115
8 33 98
9 38 106
10 42 112

3 3