Properties of materials - page 78
We can change the shape of materials
We can break fragile materials
We can see through transparent materials
We can bend and stretch flexible materials
Mass and volume - page 80
-Mass: amount of matter in an object (kg, g) We use scales to measure.
-Volume: amount of space of an object. We use measuring tools (cups, measuring jars...)
Forces - page 82
When two objects have physical contact
Happens without physical contact (magnetism, gravity)
States of water - page 84
Ice and snow are solid forms of water (when its cooled)
Normal or standard state of water
Water vapour is a gas form (when its heated)
Recycling - page 86
The amount we use. Only buy what you need
We need to separate the different materials
Some objects can be used several times