LO 1: When a solid is heated it melts to form a liquid. LO 2: When this liquid is cooled it forms a solid again. LO 3: When some solids are heated they change completely.

BBC Science Clips - Solids and liquids Melt and cool the chocolate, butter, wax, etc. Watch the temperature change. Test how the material moves when it is melted. Printable worksheet available (Click on Worksheet)

BBC Science Clips - Reversible and irreversible changes Mix items with water, cook an egg, melt ice - which are reversible and which irreversible changes? Printable worksheet available (Click on Worksheet)

Idea Use the datalogger temperature probe to measure the different temperatures at which materials such as chocolate and butter melt.

Idea Use the digital camera or digital blue camera to take photos or short movies of melting and cooling experiments

LO 4: Solids have a fixed shape and volume. LO 5: Liquids have a fixed volume but can change shape. LO 6: Gases can change their shape and their volume.

Changing Matter What happens to the particles in a block of ice as it is heated?

BBC Science Clips - Gases around us Watch how gases fill up any space they are put into. Click the Sorter button to classify objects into solids, liquids and gases. Printable worksheet available (Click on Worksheet)

CTB > Materials > MSPub Example Use this starter Publisher document to create a poster about the differences between solids, liquids and gases.

LO 8: When some materials are mixed they are changed completely. LO 9: Solids of different sizes can be separated by sieving.

Idea Use the Digital Microscope to film the reaction when vinegar is added to bicarbonate of soda. Use the Digital Blue camera to film the adding of Alka-Seltzer to water. Insert movies into PowerPoint.

LO 5: Oxygen is needed for breathing and burning. LO 6: Carbon dioxide is used in some fire extinguishers.

Idea Use the Digital Blue camera to film the candle experiments, or simply use it as a way of projecting a large image of the experiment so that every child can see clearly.

LO 8: The Earth consists of a core, mantle and crust. LO 9: The core is in the centre surrounded by the mantle with the crust on the outside.

Structure of the Earth Click the buttons to find out more about the structure of the Earth.

CTB > Materials > Pixbank Structure of the Earth Use these images in Creating and Presenting work

LO 10-13: The three main types of rock are igneous, sedimentary and metamorphic.

BBC Science Clips - Rocks and soils Test different types of rock to see if they float, split, wear well and are permeable. Printable worksheet available (Click on Worksheet)

Identifying Rocks Flow chart to help pupils to identify rock samples

Idea Use the Digital Microscope to examine rock samples more closely.

CTB > Materials > rocks.ppt A comprehensive teaching PowerPoint presentation

Rock Hounds Find out how the different types of rocks are formed

Geo Mysteries Watch the animations about how rocks are formed (refresh the page if they stop working)

LO 14: Soils are formed from rocks that have been weathered and broken down. LO 15: Soils contain the remains of dead plants and animals (organic matter)

Idea Use the digital microscope to examine soil samples

Soil A series of interactive activities.
Starter Activity: Drag the words to complete the sentences.
Main Session Part 1: Online soil experiment
Plenary: (Tab 1) Wordsearch. (Tab 2) Evaluation.