Page 9 - Science and Technology Std 3

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such as cars, aeroplanes and music. The skin helps us to touch
and feel things. The skin can detect hot, cold, hard, soft and
rough objects when we touch them. The skin can also sense heat
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when we get closer to hot objects. It also senses cold when we

stand next to cold things. The tongue is used to taste different
foods, fruits and drinks. The eyes, tongue, ears, nose and skin
are sense organs.

We should be careful when exploring things in the environment.
Some things are poisonous, itchy, hot, stinky and sharp. You
should not taste anything that you do not know.

Exercise 1

Answer the following questions.

1. The part of the body used to smell is called ______.
2. The part of the body used to hear different sounds is

called ______.

3. The part of the body used to sense heat or cold is
called ______.

4. What is an environment?

5. Which part of the body is used to identify different
colours of things?

6. Mention five things which are found in your school
environment.

7. Which part of the body is used to taste honey?

Living and non-living things

Living things are things that have life. Living things can breathe,
eat, grow, move, reproduce and die.

Non-living things are things which have no life.

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PROPERTY OF UNITED REPUBLIC OF TANZANIA GOVERNMENT
Ministry of Education, Science and Technology
Science and Technology 3.indd 2 03/08/2019 11:01