Water resistance: plan
I can plan an investigation to identify the effects of water resistance.
Water resistance: plan
I can plan an investigation to identify the effects of water resistance.
Lesson details
Key learning points
- Water Resistance is a force which acts to slow down or stop objects that are moving through liquid.
- Water resistance acts in the opposite direction to a moving object.
- Scientists ask questions about water resistance to help them to find out more about it.
- Scientists control variables and plan tests to investigate water resistance.
Common misconception
All objects experience the same amount of water resistance, regardless of their size or shape.
Discussion and explicit teaching. The investigation they plan will, in the next lesson, show them that this is not true.
Keywords
Force - A force is a push or a pull. Forces can make objects change speed, change direction or change shape.
Water resistance - Water resistance is a type of friction force which acts between a liquid and the surface of an object.
Comparative test investigation - In a comparative test, the thing that is being changed has labels, such as the types of materials.
Variables - A variable is something that can be changed, measured or kept the same in an investigation.
Equipment
Not essential but modelling dough & a 2 litre plastic bottle full of water would help with planning.
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Starter quiz
6 Questions
large surface area
small surface area
Exit quiz
6 Questions
