1. Heat

2. Lesson 3- learning intention
To identify how heat travels between hot and cold objects
To write a scientific report using the correct format

3. Corners
Does a hot object in the middle of the room heat the room or cool the object?

4. If we place a block of ice in a desert heat will flow in to it

5. If we place a fire in a cold forest it will heat up the surroundings

6. Heat Flows
Heat always flows from where it is hotter to where it is cooler
If you place a cold object in a hot environment heat will flow in to it
If you place a hot object in a cold environment heat will flow from it

7. Heat flows
When two objects with different temperatures are brought into contact, their temperatures will change until they reach the SAME TEMPERATURE

8. Experiment
Heat a paper clip up using the bunsen burner then drop it into a beaker of water. Measure the temperature of the volume before and after the paper clip is added

9. Copy table Temperature at start (⁰C) Temperature at end (⁰C)
Change in Temperature (⁰C)

10. Experiment: Instructions
Collect Safety glasses, beaker, Bunsen burner, heat proof mat, tongs, paperclip, thermometer.
Measure 150 ml of water and pour into your beaker.
Measure the temperature of the water with the thermometer and record into your table.
Safely light the Bunsen burner.
Holding the paperclip with the tongs, heat it until it glows red hot.
Carefully drop the paperclip into the beaker of water.
Record the new temperature of water and calculate the difference.

11. Writing a scientific report
AIM What did we want to find out from this experiment? To prove that heat flows from hot to cold

12. Writing a scientific report
METHOD A labelled diagram and detailed description of how you did the experiment

13. Writing a scientific report
Results
Temperature at start (⁰C)
Temperature at end (⁰C)
Change in Temperature (⁰C)

14. Writing a scientific report
Conclusion What do the results tell you?

15. Writing a scientific report
Evaluation Did you achieve the expected results? Did you results agree with the rest of the class? Was there anything that didn’t work well? What improvements could you make to this experiment?