What We Did
Room 12 explored how water pressure works.
Introducing the Resources
We needed
- 2L empty plastic bottles
- Straws
- Hot glue gun
- Water and food colouring
- Balloons
Modeling the Process - Part 1
- I made a small hole in the bottle.
- A straw was inserted so most of it stuck out.
- It was sealed with a hot glue gun
Introducing Scientific Thinking - Part 1
- Predictions - We thought about what would happen when we filled the bottle with coloured water.
- Hypothesis - the water would flow out of the straw.
Modeling the Process - Part 2
- We filed the bottle with water
Introducing Scientific Thinking - Part 2
- We observed that the water stayed in the bottle and did not flow out of the straw.
- What would happen if I blow up a balloon and fix it over the top of the bottle?
- Hypothesis - the water would flow out of the straw.
Why?
The students now know scientists predict, observe and record.
Keywords: Hypothesis, Predictions, Observations
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