Muscle strength: do and review (non-statutory) | Science

Starter quiz

Muscle strength shows how ______ your muscles are.
- 'strong' ✓
Scientists carry out investigations to find answers to their ...
- 'questions' ✓
Which of these are types of science enquiry?
- fair test ✓
- pattern seeking ✓
- creating a question
- observation over time ✓
- secondary research ✓
After choosing the right type of investigation, scientists make a ______ before they begin.
- 'plan' ✓
Which of the pieces of equipment could help you to investigate muscle strength?
- thermometer
- tape measure ✓
- hand grip ✓
- stop watch ✓
Put in the correct order, the sequence you would carry out these actions when doing a science investigation.
- 1
  
  ⇔
  
  Create a question.
- 2
  
  ⇔
  
  Decide which type of science enquiry to use.
- 3
  
  ⇔
  
  Plan your investigation and collect your equipment.
- 4
  
  ⇔
  
  Carry out the investigation and record data.
- 5
  
  ⇔
  
  Make a conclusion.

Which one of these does a scientist need to do before they start their investigation?
- a conclusion
- a plan ✓
- a measurement
- a review
Which of these questions could you ask to investigate muscle strength?
- How many muscles are there in the human body?
- Do muscles work in pairs?
- Which is the largest muscle in your body?
- Do people with stronger muscles jump higher? ✓
- Do you use the muscles in your arm to help you drink?
Scientists look for ______ in the data they have collected. This helps them to decide how one thing affects another.
- 'patterns' ✓
Jacob has collected some data for his investigation. Help him put this data in order from the person with the most to least muscle strength.
- 1
  
  ⇔
  
  Izzy held the 3 kg mass for 3 minutes and 25 seconds.
- 2
  
  ⇔
  
  Aisha held the 3 kg mass for 3 minutes and 10 seconds.
- 3
  
  ⇔
  
  Jun held the 3 kg mass for 2 minutes 44 seconds.
- 4
  
  ⇔
  
  Sofia held the 3 kg mass for 1 minute 59 seconds.
- 5
  
  ⇔
  
  Andeep held the 3 kg mass for 1 minute 31 seconds.
Which part of the investigation explains what the results of an investigation show or mean?
- the table
- the plan
- the prediction
- the conclusion ✓
- the data
Sometimes when a scientist carries out an investigation the ______ are not what they expected.
- 'results' ✓

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Scientists carry out the investigations they have planned to find answers to their questions.
Scientists look for patterns in the data they have collected and make conclusions.
Scientists review their investigations. Sometimes the data they collect are unexpected.

Pupils may believe that the results from a few children they measured can be applied to all humans.

Share each group's results and see how they are different. Explain that a much larger sample may provide different results.

Muscle strength - Muscle strength is shown by how well a muscle can withstand a force or pressure.
Record - To record information is to keep it, so that it can be passed on to others.
Review - A review is the act of considering something again in order to make changes to it, give an opinion of it, or study it further.
Patterns in data - Scientists look for patterns in data to answer their questions.
Conclusion - In a conclusion, scientists explain what their results show or mean.