Try this investigation to get learners making predictions and observing how materials change when they freeze
This experiment focuses on freezing different liquids. First watch the video of the ‘intriguing ice’ demonstration, then find out how you can get your learners freezing different liquids and thinking about the properties of solids and liquids.
- To describe the properties of solids, liquids and gases.
- To understand that materials change state when they are cooled.
- To practise making predictions, observing and recording changes that occur over a period of time, and interpreting and communicating results.
Watch the video
The video demonstration below shows how to carry out the ‘intriguing ice’ demonstration.
Download the supporting materials
Set up and run the investigation with your class using the teacher notes and classroom slides, featuring a full equipment list, method, key words and definitions, questions for learners, FAQs and more.
What do learners need to know first?
Learners should be able to compare and group materials according to whether they are solids, liquids or gases.
- Access to a freezer
- Plastic beakers
- Food colouring
- Fizzy drink
- A variety of liquids that learners can handle and freeze, eg shampoo, vinegar, cooking oil, fruit juices and honey
Access to freezer – this could be in a staff room, school kitchen or at home. Note that there is no risk to health because none of the liquids that will be frozen are unfit for human consumption.
- Investigate the properties of solids further in our biscuit bashing investigation.
- Try the suspended ice demonstration from our collection of video demonstrations exploring solids.
- Read up on solids, liquids and gases in this That’s Chemistry! textbook chapter or heating and cooling materials in this That’s Chemistry! textbook chapter.
- Introduce your learners to solids, liquids and gases with our primary science podcast.
Primary science investigations were developed in collaboration with the Primary Science Teaching Trust
Primary science investigations
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Freezing and the ‘intriguing ice’ experiment