Year 8 chemistry


Learning Outcomes

Students must be able to:
Links
-recognise the states of matter.
-state the properties of solids, liquids and gases.
-explain the change of state in terms of the particle theory.
This can be done through the completion of a model or other project.
-explain melting, freezing, evaporation and condensation in terms of the particle theory.
-recognise that the atom is the smallest particle of matter.
-describe the structure of an atom and its subatomic particles.
-describe how electrons are arranged in the first two energy levels.
-explain simple behaviour of an atom according to its electronic configuration.
-identify an element, a compound and a mixture.
-recall the symbols for the first twenty elements and identify the elements in a compound given its chemical formula.
-explain the atomic number and atomic mass of elements.
-explain how elements that have similar properties are arranged in groups, in the periodic table.
-distinguish between a chemical and a physical change with examples.
-identify the products and reactants of simple chemical reactions around the home.
-write word equations for simple chemical reactions. Link
-identify isotopes of an element. Link
-recall that density is the amount of mass divided by the volume it occupies. Link

Demonstrations
The serpent
Making money increase in value.
The bouncing ball
Reactivity of sodium in water
Oxygen gas igniting a candle.
Properties of carbon dioxide gas in extinquishing fires.
Properties of carbon dioxide in special effects



Activities
Recovery of copper metal from copper carbonate (breaking down a compound to obtain a pure element(Cu))
Electroplating metals
Making sparklers (Chemical reactions that involve rapid rusting and give off a great deal of heat)
Precipitation reactions (Colour change as an indication of a chemical reaction)
Making plastics such as slime
Yeast and the usefulness of their chemical reaction (The use of yeast and their chemical reaction in the kitchen)
Making a home battery. (Storing chemical energy for later use)
Making a simple oil and salt lava toy
( Using water soluble and insoluble substances to create a simple Lava toy)
Thin film chromatography (Separation of mixtures)
Lemonade a mixture of many substances. (separation of lemonade into some of its constituent compounds)

Tests

Atomic structure

Chemical symbols

Particle theory

Chemical reactions

Simple word equations

Elements, compounds and mixtures