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1. What kinds of experiments have you done in science class?
2. If you hold a jar that is filled with water upside down, what will happen?
* Where does Danny think they should do the experiment.
* What keeps the water in the jar?
* Is Jenny sure of her theory? How do you know?
* Why does Danny put on his raincoat?
* What does Danny conclude?
Read the dialogue with the following
questions.
Work in groups and think of this experiment.
Discuss it and write down how we do it.
Step 1 Preparation:
Make a list of the materials and tools that we will use in the experiment.
Water, a jar, a piece of cardboard.
Step 2 Theories:?
Write down two different theories.
1. The floor will get wet.
2.?The floor won’t get wet.
Step 3 Main steps:
1. Fill a jar with water.
2. Cover the top with a piece of cardboard.
3. Turn the jar upside down.
4. Take off the hand.
Step 4 Result:?
The force of air will keep the water in
the jar.
How do we do the experiment?
Let’s do an interesting experiment. First,
I ___ a jar ___ a desk, ___ it ____ water, then _____the top ____ a piece of cardboard. When I ____the jar ______ _____, can you guess what will happen?
put