Water resources

Task: Answer questions about what happens to water in open and closed containers. Assessment focus: evaporation.

Task: Answer questions about what happens to water in open and closed containers and compare to the water cycle. Assessment focus: evaporation, the water cycle.

For each of eight provided situations students identify whether each is an example of evaporation, condensation or neither of these.

Students are given diagrams representing the three states of matter. Students answer four questions relating to these.

Students identify the changes of state that are occurring in a diagram showing the separation of fresh water from seawater.

For this practical task students make a prediction about which lot of ice will melt first. Then students record their observations and explain why one lot of ice melted faster than the other.

Students are provided with a sequence of diagrams showing the erosion of a waterfall by a river over time. Students complete diagrams for two other waterfall erosion sequences. Each waterfall has different combinations of layers of soft and hard rocks.

This practical task assesses students' ability to design and carry out a fair test on the relationship between slope and rates of erosion.

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.

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 use a diagram to answer questions about water reserves, the main difference between lake and sea water, and to explain how water in the ocean could end up falling as snow in the mountains.

For this task students are provided with three pie graphs on water. Students are required to interpret these to answer four short answer questions.

Task: Select which state of water applies to a list of places where water can be found. Assessment focus: states of water.

Students are asked one multiple-choice and one short answer question about fair testing.

Task: Students make predictions about evaporation rates of instances where surface areas are a factor, select which variable is being investigated in both examples and explain their answer. Assessment focus: Using knowledge of surface area to make predictions.

This task assesses students' understanding of the states of matter by requiring them to draw and label diagrams of water as a solid, liquid , and gas.

Task: Describe where water goes when washing is drying and from a swimming pool, and discuss factors that affect this process. Assessment focus: evaporation.

Students use a diagram that shows a proposed site for a town that has a river running through it. Students identify where it would be best to collect drinking water, and how town planners could stop the town from flooding.

Task: Answer three questions. Assessment focus: condensation.