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Can plan scientific enquiries controlling for variables where necessary

Can develop a line of enquiry and make predictions based on evidence

Can test predictions, identifying independent, dependent and control variables

Santa’s Candy Cane Calamity

Santa needs you!

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Can plan scientific enquiries controlling for variables where necessary

Can develop a line of enquiry and make predictions based on evidence

Can test predictions, identifying independent, dependent and control variables

The problem

• Santa’s elves work very hard at this time of year. With all the present wrapping and loading up the sacks, they need a diet with a high energy content (did you know elves have a very high metabolic rate?)• Mrs Claus has come up with a solution –

Candy cane crush. Using her own special recipe (mostly North Pole water, candy canes and a hint of magic)

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Can plan scientific enquiries controlling for variables where necessary

Can develop a line of enquiry and make predictions based on evidence

Can test predictions, identifying independent, dependent and control variables

• To make enough Candy Cane crush for all the elves Mrs Claus has to work fast (there are a lot of elves at the North Pole)• The delay in production is

dissolving the candy canes in the cold melt water.• Rudolph told Mrs Claus (yes the

reindeer can talk) that if she can speed up this process then she can make enough candy crush for all the elves

The problem

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Can plan scientific enquiries controlling for variables where necessary

Can develop a line of enquiry and make predictions based on evidence

Can test predictions, identifying independent, dependent and control variables

Dissolving candy canes

• What do you know about candy canes?• What are they made of?• What will they be dissolving in?• What do you know about dissolving already• Could you make a prediction based on this

knowledge?

Write your ideas down on your planning sheet

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Can plan scientific enquiries controlling for variables where necessary

Can develop a line of enquiry and make predictions based on evidence

Can test predictions, identifying independent, dependent and control variables

Mrs Clause needs proof

• Mrs Claus only wants hard science. You need to plan an investigation to give her the information she needs to speed up production.• There might be more than one way to

speed up production – you could investigate them all if you work quickly• You need to think about what variables

you will measure and which you will control.

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Can plan scientific enquiries controlling for variables where necessary

Can develop a line of enquiry and make predictions based on evidence

Can test predictions, identifying independent, dependent and control variables

The hypothesis

• Santa’s chief elf has arrived with a hypothesis

The rate of dissolving of the candy canes is linked to the temperature of the water

• Rudolph has a different hypothesisThe rate of dissolving of the candy canes is linked to the size of the candy cane pieces

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Can plan scientific enquiries controlling for variables where necessary

Can develop a line of enquiry and make predictions based on evidence

Can test predictions, identifying independent, dependent and control variables

The experiment• You need to make sure you are safe –

humans don’t heal as quickly as elves.• What equipment will you need?• What readings will you take?• What will you need to measure?• What variables will you control?• How will you make your test fair• How will you record your findings – you

need to design a results table to put your results in.

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Can plan scientific enquiries controlling for variables where necessary

Can develop a line of enquiry and make predictions based on evidence

Can test predictions, identifying independent, dependent and control variables

Your findings

• Mrs Claus isn’t a scientist. She needs the results presenting in a format she can read – a line graph or bar chart (you decide based on your variables) would be best.• What did you find out?• How did your findings relate to your

hypothesis? Explain for Mrs Claus what you found out

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Can plan scientific enquiries controlling for variables where necessary

Can develop a line of enquiry and make predictions based on evidence

Can test predictions, identifying independent, dependent and control variables

Were your predictions right?

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Can plan scientific enquiries controlling for variables where necessary

Can develop a line of enquiry and make predictions based on evidence

Can test predictions, identifying independent, dependent and control variables