1. Keeping cold things cold
Activity type: Investigation
In this investigation the children test different materials to see which is best at keeping a drink cold.

2. Have a class discussion with children on Guzzler’s problem and their related task.

3. Questions to promote fair test investigation

4. Selecting materials for the class investigation
With the aid of class discussion, identify the items you will use in your investigation to keep the drink cold.

5. PCM 10
In groups the children discuss the investigation they will do to help Guzzler.
Provide the children with the equipment they could use to carry out their investigation.
In groups the children discuss ways they will carry out the investigation.
They record their ideas on their planning sheets.

6. PCM 11
Designing a Recording Table
Before commencing the investigation, children re-cap on how they would design their recording table from earlier group discussion activity.
Each group designs its own table

7. Following this discussion, invite children to reveal the proposed designs of their recording tables to the class.
If required -
Sample Recording Table to see how Rohan designed his table?
Do you agree with his design?
Would you have added anything?
(the word temperature)
What will Rohan do to complete the investigation?
How long will it take?
How do you know?
Why does he need 4 thermometers?
Why does he need the watch?
In your opinion, which of the insulators will be the best?
Give a reason for your answer.

8. Questions for final discussion and evaluation:

9. Final assessment