Natural Science - Matter

Combustion and oxidisation need.....

• oxygen

• water

• grass

From liquid to gas is...

• evaporation

• condensation

From solid to liquid is.....

• melting

• evaporation

In the fermentation, oxygen.....

• is needed.

• is not needed.

Combustion and oxidisation are ....

• Physical changes

• Chemical changes

Matter is anything that takes up space

• True

• False

Homogeneous mixtures...

• Have a uniform composition. Once the diferent components are mixed, they cannot be identified or separated from each other

• Have an irregular composition. They are formed by two or more elements that do not combine with each other. The different components maintain their characteristics.

Heteregoneous mixtures...

• Have a uniform composition. Once the diferent components are mixed, they cannot be identified or separated from each other

• Have an irregular composition. They are formed by two or more elements that do not combine with each other. The different components maintain their characteristics.

What is matter?

• Everything that has a mass and occupies one space.

• Everything that hasn't a mass and doesn't occupy a space.

The types of mixtures are....

• Homogeneous and heterogeneous

• Homogeneous and pure substances.