English National Curriculum - Science
Mission Objectives
Understand melting points
Observe and accurately record the temperature at which food changes state
Predict the melting point of different foods
Enquiry Approach - Observation over time
Observing changes that occur over a long or short period of time.
Enquiry Skill - Setting up tests
Carefully following a method and using equipment accurately to carry out a scientific enquiry. The method may be designed by teachers or children themselves.
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Words and meanings to learn
particle
one very small part of matter
thermometer
a device used to measure temperature
melting point
the temperature at which a solid changes state to a liquid
melting
the process of a solid changing state to a liquid
temperature
how hot or cold something is
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Resources: Mini whiteboards, a variety of foods to melt (such as butter, coconut oil, dark, milk and white chocolate, gummy bears and different cheeses), tealight stand, tealight, metal pie cases, tongs, matches or access to a kitchen stove with a saucepan and bowl over boiling water and a thermometer.
Core Handout (2): An investigation template to record an experiment on the different melting points of food.
Stretch Handout (3): An investigation template to record an experiment on the different melting points of food. The children are asked to predict the melting points of each food in °C.
Note: Additional data providing the melting points for a variety of foods in °C is provided on the last page in case the children are not able to investigate these themselves.
RISK ASSESSMENT
Tea Lights: Place securely in a metal tray, e.g. baking tray or tin lid filled with sand and place on a tealight stand.
- Ensure all heating activities take place under close adult supervision.
- Warn pupils not to lean across the table in case they come into contact with the flame/hot object.
- Combustible materials should be removed.
- Never leave a naked flame unattended. Dispose of matches carefully.
- Long hair and loose clothing must be tied back.
- Do not allow lit candles to be carried around.
- Pupils should stand for the activity, so that they can move away quickly in case of an accident.
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