Water resistance: do and review
I can carry out an investigation into water resistance and evaluate results.
Water resistance: do and review
I can carry out an investigation into water resistance and evaluate results.
Lesson details
Key learning points
- Scientists take, repeat and compare measurements using a range of scientific equipment.
- The evaluation of an investigation can include an explanation of, and degree of trust in, the results.
- Greater surface area on a moving object can increase 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 carry out will show them that this is not true.
Keywords
Water resistance - Water resistance is a type of friction force which acts between water and the surface of an object.
Trust - How reliable we think the results of an investigation are.
Reliable - If a result is reliable, it measures something consistently.
Evaluation - In the evaluation of an investigation, scientists judge how reliable the results and conclusion are.
Equipment
Modelling dough, 2 litre bottles, water, trays, equipment to film in slo-motion, stopwatches.
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
submarine moving through the sea
helicopter flying
car tyres on a road
Exit quiz
6 Questions
Increase water resistance
Decrease water resistance
Increase air resistance
Decrease air resistance