Comparing rock salt with table salt (non-statutory)
I can use a hand lens or microscope to observe and compare rock salt and table salt.
- Year 6
Comparing rock salt with table salt (non-statutory)
I can use a hand lens or microscope to observe and compare rock salt and table salt.
Lesson details
Key learning points
- The salt people put on their food or in their cooking is usually a type of salt called table salt.
- Table salt has a wide range of uses.
- Table salt can be obtained through two main methods: mining underground salt deposits and evaporating seawater.
- Different types of salt can be observed and compared using a hand lens or microscope.
Keywords
Table salt - The salt people put on their food or in their cooking is usually a type of salt called table salt.
Processed - If something is processed, it is changed from its natural form by people.
Salt mines - Salt mines are areas of Earth from which rock salt is extracted. These are often underground.
Rock salt - Rock salt is the name given to salt before it is processed.
Microscope - A microscope is a piece of equipment that magnifies very tiny objects.
Common misconception
Pupils may think that there is only one type of salt and that it all comes from the sea.
Teaching slides explain how salt is produced and introduce pupils to rock salt and table salt. Pupils make a comparison of the two.
Equipment
rock salt, table salt, hand lenses, water, beakers, spoons, microscopes (primary friendly) if available.
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
Lesson video
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