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This practical task requires students to describe to a partner their observations about an ice cube melting. Students then develop questions about what they observe.

This practical task requires students to make observations of the changes that occur in five common foods as they are cooked.

For this practical task students complete a table of observations for the following substances: vinegar, baking soda, and vinegar and baking soda mixed together.

For this practical task students follow a plan to determine the best temperature for the reaction of rennet with milk. Students need to make observations and write a report on their findings.

Plan an investigation to find out which of two students' predictions is correct, and identify how to recognise what a result would look like. Assessment focus: identifying what to measure or compare to answer a science question.

Students explain two ways to make salt dissolve faster when in cold water.

For this practical task students record their observations as an egg is poached in water.

Task: Identify which variables should be kept the same to compare reaction times. Assessment focus: control of variables.

This practical task requires students to plan and carry out a fair test to find out which paper type will soak up water the best.

Students read some information about testing the absorbency of different papers. They outline two features that need to be kept the same if the tests were to be fair.

Students complete a table for six common objects by stating the material used to make each object and a useful property of that material.

Students answer five questions about 'fair testing' for an outlined investigation.

Students outline four ways of improving a given plan for an investigation to make it a fair test.

Students are given information and a diagram about a drink bottle overflowing when it had been put into the freezer. Students are asked to explain why this happened and how they could prevent it.

Task: Plan a fair test to see if adding salt water to water affects how long it takes to freeze. Assessment focus: managing variables.

Task: Describe what happens to ice in a glass of water, giving reasons, and explain where water forming on the outside of the glass comes from. Assessment focus: changes of state.

Students are asked to identify a solid, liquid, and a gas. They are also asked to write down two things that are generally true for each of these three states of matter.

For this practical task students use their knowledge about the properties of gases to explain their observations when they blow up a balloon that is inside a bottle and a balloon that is not inside a bottle.

In this practical task students investigate the effect of temperature on viscosity. Students describe and explain what has happened.

Students draw a circle around those objects that are hard.

Students outline four tests they could do to find out if a newly described substance is a metal.

Students outline a test they could do to show if a substance is a metal or not.

Task: Students place in order four beakers of copper sulphate solution from most to least concentrated. They then explain what would happen if two beakers were put together, and explain the term "concentration". Assessment focus: solutions.

Students complete a plant record for a tree by making observations.

This task requires students to order four photographs of the life cycle of the Paradise Duck. Students describe the changes that have occurred in each part of the lifecycle. NOTE: It is intended that this resource be used in colour.