Page 9 - York Global Science 6 - Physical Science

Let’s Learn

Let’s Explore Let’s Learn sets out the main

concept that you need to know.
Let’s Explore gives you
the chance to work on
the chance to work on
a practical investigation
a practical investigation Physical Science
task as a group or with a
task as a group or with a
partner. Let’s Learn r rn
partner.
Everything that moves or changes needs energy. Without energy there
would be no sound, no light, no movement, no heat and no electricity.
Physical Science

Let’s Explore
atch the demonstration of the movement of particles.
W W atch the demonstration of the movement of particles.
Watch the demonstration of the movement of particles.
Explain what happens and why.

Without energy, you could not walk, talk, play or learn. All of the systems in
your body need energy to work. All of the cells in your body need energy to
grow and make new cells.
Where do we get our energy from? It comes from the food that we eat!

Food is chemical energy that is broken down by your body in the digestive
system and changed into energy that you can use. This energy helps your
body to move, grow, repair itself, stay warm and stay healthy.
Now complete the worksheet in the Workbook.
Now complete the worksheet in the W orkbook.
Let’s Reflect
1 What is Brownian motion? 127
2 Give an example of when this happens.
Give an example of when this happens.

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Let’s Reflect

Let’s Reflect allows you to think about what you
have just learned individually or with a partner.

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