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Science

In science we would be learning about changing materials.

Children need to:

  • compare and group together everyday materials on the basis of their properties, including their hardness, solubility, transparency, conductivity (electrical and thermal), and response to magnets
  • know that some materials will dissolve in liquid to form a solution, and describe how to recover a substance from a solution
  • use knowledge of solids, liquids and gases to decide how mixtures might be separated, including through filtering, sieving and evaporating
  • give reasons, based on evidence from comparative and fair tests, for the particular uses of everyday materials, including metals, wood and plastic
  • demonstrate that dissolving, mixing and changes of state are reversible changes
  • explain that some changes result in the formation of new materials, and that this kind of change is not usually reversible, including changes associated with burning and the action of acid on bicarbonate of soda.


Follow the links to find out more, watch the video clips, read the background information and then try some experiments. Work through the following 5 activities in order. Remember to get an adult to help you with all experiments.

 

Activity 1: Comparing and Grouping Materials

1. Find 10 household items , make a list and describe each of their properties. Identify why they are used for that job.

2. Wrong Materials activity : Look at the slides below (if you can - if not the list is here ) and say why these products wouldn’t work:

  • A chocolate door handle
  • A glass teddy
  • A paper boat
  • An ice bowl
  • A wooden jumper
3. Complete these worksheets about materials . If you can’t print them out you can copy the sentences out.
4. Try one of these thermal insulator experiments. Remember to get an adult to help you so you don’t hurt yourself.
Activity 2: Changing Materials (Dissolving)
Read the comic below and then complete the activities. You can write them out on some paper if you need to. Try the experiment. Remember to get an adult to help you so you don’t hurt yourself.
Activity 3 : Separating Mixtures (filtering, sieving and evaporating)
Activity 4 : Reversible Changes (dissolving, mixing and changes of state)
Try this experiment growing your own crystals.
Activity 5 : Irreversible Changes
This resource from the a Royal Society of Chemistry has simple experiments that children can do at home with everyday materials to explore their properties. See how many you can have a go at and record your results. Why not video/photograph what you do and send it to us. Always make sure an adult helps you with experiments so that you do not get hurt.

Follow the link below where you can use your LGFL log in to carry out the virtual experiments linked to our topic.

Explore the experiments 5c and 5D:

In the document below you can find all key vocabulary and all key knowledge for the topic:
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