Unit 3 Presenting ideas Writing 课件 2021-2022学年高中英语外研版（2019）必修第三册

Unit 3 The world of science Writing Read the instructions for the experiment and answer the questions. Writing an experiment report Let’s do the experiment step by step. Magic bottle Materials A boiled egg A glass bottle (bottleneck a bit smaller than the egg) Hot water Procedure Remove the shell of the egg. 2. Carefully pour some hot water into the bottle. 3. Shake（摇晃） the bottle gently. 4. Pour out（倾倒） the hot water. 5. Quickly put the egg on top of the bottle. Results What will happen? 1. What do you think the result of this experiment will be? 2. What does the experiment prove? The egg will squeeze（挤压） into the bottle. Phenomenon and result The experiment 1. What do you think the result of this experiment will be? 2. What does the experiment prove? The egg will squeeze into the bottle. The experiment shows us the effects of air pressure. Air pressure indeed exists, and it is very powerful. Complete the boxes with the information in Activity 5. Do further research if necessary