Matter
What is an example of a natural material?
Cotton, wood, leather, silk, diamonds, or sand
When is water in a gas state?
Temperatures over 100 C
What substances have only one component?
Pure substances
What type of waste is a plastic bag?
Non-recyclable waste
Everything that exists
Matter
What is an example of an artificial material?
Glass, plastic, paper
When is water in a liquid state?
Temperatures between 1 C and 99 C
What is a mixture?
What type of waste is a banana skin?
Organic waste
A mixture where we can't see each substance separately
Homogenous mixtures
What are the three states of matter?
Solids, Liquids, Gases
When is water in a solid state?
Temperatures below 0 C
What are the two types of mixtures?
Heterogenous and homogenous mixtures
What type of waste is a drinks can?
Recyclable waste
Bacteria and other living things can decompose it
Biodegradable
What are the two properties of matter?
Volume and mass
What happens when you heat liquid water?
It evaporates.
What does filtration do?
What type of waste is a broken mobile phone?
E-waste
When water vapour cools and changes into a liquid
Condenses
What is density?
The mass of a substance divided by its volume
What happens to matter when temperatures increase or decrease?
Matter can change states.
What does evaporation do?
Separates homogenous mixtures
What is one way to reduce waste?
Take your bags when you go shopping, write on both sides of the paper, reuse instead of throwing away, recycle everything
The space matter occupies
Volume