As the mixture passes through the filter, the solid particles are trapped in it.
Insoluble solid
To Separate
Filtration
Separating mixtures
When the water of the solution evaporates, leaves the solid component behind.
Soluble solid
To Separate
Evaporation
Separating mixtures
To Separate
One of the liquids evaporates and forms a gas. This gas is then cooled so that it condenses and forms a liquid again.
Two liquids
A liquid
Distillation
Chemical Changes
Fermentation
Combustion
Oxidation
Chemical Changes
Combustion
FUEL
OXYGEN
Chemical reaction in which oxygen combines with a
HEAT
Fuel
EXOTHERMIC REACTION
What do we use combustion for?
What problems can combustion cause?
Chemical Changes
Oxidation
Chemical reaction in which an atom loses one or more electrons to another atom. So that electrons are tranferred from the molecules of one substance to that of another.
Oxidation causes changes to the properties and appearance of substances
Types
Electron
Loses
Gains
Oxidation
Oxidising agent
Reducing agent
Oxidation
When iron and oxygen come into contact, oxygen atoms gain electrons from the iron atoms and oxidation takes place.
Rusting
Types of Oxidation
Some fruits are reducing agents, so when the fruit is exposed to the air, its electrons are lost. The oxygen atoms in the air gain electronsfrom the fruit atoms.
Browning in fruit
Oxidation
Fermentation
Chemical Changes
Fermentation
Bacteria
Yeast
Microorganisms
Consume the lactose in the milk and turn them into
Examples
Enzymes help a chemical change happen more quickly.
MATTER
Padawan Torá
Created on June 10, 2022
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Transcript
MATTER
1. Pure substances and mixtures
2. Separating mixtures
3. Chemical Changes
Activities & games + Aula Virtual
Pure substances and mixtures
Pure substance
Mixture
Two or more different types of molecule
One type of molecule
Examples:
Oxygen
Water
Pure substances and mixtures
Types of Mixtures
Heterogeneous mixtures
Homogeneous mixtures / Solutions
You can distinguish the components
You can't distinguish the components
The liquid is the solvent
The substances are dissolved in the liquid
Other components are the solutes
Separating mixtures
Evaporation
Distillation
Filtration
Separating mixtures
As the mixture passes through the filter, the solid particles are trapped in it.
Insoluble solid
To Separate
Filtration
Separating mixtures
When the water of the solution evaporates, leaves the solid component behind.
Soluble solid
To Separate
Evaporation
Separating mixtures
To Separate
One of the liquids evaporates and forms a gas. This gas is then cooled so that it condenses and forms a liquid again.
Two liquids
A liquid
Distillation
Chemical Changes
Fermentation
Combustion
Oxidation
Chemical Changes
Combustion
FUEL
OXYGEN
Chemical reaction in which oxygen combines with a
HEAT
Fuel
EXOTHERMIC REACTION
What do we use combustion for?
What problems can combustion cause?
Chemical Changes
Oxidation
Chemical reaction in which an atom loses one or more electrons to another atom. So that electrons are tranferred from the molecules of one substance to that of another.
Oxidation causes changes to the properties and appearance of substances
Types
Electron
Loses
Gains
Oxidation
Oxidising agent
Reducing agent
Oxidation
When iron and oxygen come into contact, oxygen atoms gain electrons from the iron atoms and oxidation takes place.
Rusting
Types of Oxidation
Some fruits are reducing agents, so when the fruit is exposed to the air, its electrons are lost. The oxygen atoms in the air gain electronsfrom the fruit atoms.
Browning in fruit
Oxidation
Fermentation
Chemical Changes
Fermentation
Bacteria
Yeast
Microorganisms
Consume the lactose in the milk and turn them into
Examples
Enzymes help a chemical change happen more quickly.
LACTIC ACID
Activities
Games
&
Activity 4
Activity 1
Activity 2
Activity 5
Check your learning
Activity 3
Activity 6