For this practical students make observations about dissolving, and plan and carry out an investigation to find out what makes sugar dissolve more quickly.
For this practical task students are assessed on their ability to observe changes that have occurred to 'popping' corn before and after it is heated. Drawings and written observations are required.
Describe methods for speeding up and slowing down melting of an ice cube using one of three provided objects, and explain why the methods would work. Assessment focus: planning an investigation.
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.
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.
For this practical task students are assessed on their ability to record their observations of the decomposition of a cut slice of pumpkin over a two week time period.
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.
This practical task requires students to sort some common items from hardest to softest. Students then explain a test that they used to help determine this.
In this practical students are first required to identify as many uses of paper they can think of. Then, using samples of different paper types, they identify particular uses for that type of paper and reasons why the paper is used for this purpose.
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.