Explain what matter is.
It is everything around us that has a mass and occupies a space.
What is matter made up of?
It is made of tiny particles called atoms.
What is formed when atoms join together?
Molecules
What are the three states of matter?
Solid, liquid, and gas.
What are solids?
Atoms are very close one to each other so they tend to stay in the same place. They have just a little energy.
What are liquids?
Atoms have a small space between them so they can move a little taking the shape of their container. They have some energy
What are gasses?
Atoms have a lot of space between them that is why they move a lot and they completely fill a container. They have a lot of energy.
What happens when we change the temperature of matter?
Atoms move and change their position.
What is a pure substance?
It consists of just a type of atom like hydrogen (H) or just a type of molecules like water (H2O)
What is an element?
Pure substances made up of only one type of atom.
What are compounds?
They are composed of more than one type of atoms. They cannot be separated into simpler substances by physical means.
What is a mixture?
It’s a combination of two or more substances called components. These components can be separated by physical means.
What are the two types of mixtures?
Homogeneous and heterogeneous.
What are homogeneous mixtures?
We can’t distinguish the different components that make up the mixture.
What are heterogeneous mixtures?
We can distinguish the different components that make up the mixture.
We use it to separate components in a mixture that display magnetic and non-magnetic properties.
Distillation
Filtration
Magnetism
Evaporation
