A mixture is a substance in which two are more substances are mixed but not joined together, meaning that a chemical reaction has not taken place.
Mixtures can be easily separated and the sustances in the mixture keep their original properties.
Imagine mixing skittles and full size marshmallows, the individual components (skittles and marshmallows) could easily be separated using a filter.
You can make many mixtures with many every day things.
1. Firstly try to make a mixture of toys.
2. Make a mixture of cereal or sweets.
3. How about a cup of tea. The tea, water, sugar and milk all makes a nice mixture.
What about salt in water? What do you notice happens to the salt?
Water and liquid soap
Milk and milkshake powder! Yummy!
Solutions are mixtures when a solid (which we call a solute) dissolves into a liquid (that we call the solvent)
Aim: To test out these three mixtures to see which form solutions and which don’t?
- Salt and Water
- Sugar and Water
- Sand and Water
You should find that both salt and water and sugar and water dissolve and form solutions and that sand sinks to bottom!
What mixtures can you make?