2. Mixtures and Solutions

3. Mixtures two or more materials stirred together How do you separate mixture? 1.Hand separation 2.Screening 3.Filtering

4. Solutions a special mixture formed when a material dissolves in water How do you separate solution? 1.Evaporation

5. Solubility or most soluble The property of a substance that tells how it dissolves in a liquid. Which is the most soluble? Salt Baking soda Citric Acid

6. Saturated Solution is when a solute dissolves in a solvent until no more will dissolve. How can you dissolve more in a saturated solution? Heat Add more solvent

7. Saturated solutions All saturated solutions made at the same temperature always have the same ……… Concentration.

8. Crystal Regular form Examples: Salt - Citric Acid - Epsom Salt - Snowflake -

9. Concentration the amount of material dissolved in an amount of liquid. Mathematically Which is more concentrated? 1 in 25, 2 in 50, 3 in 100, 4 in 125

10. Dilute to make a solution less concentrated To dilute something: Add more solvent - water or the liquid

11. Chemical Reactions When two or more materials (chemicals)are mixed together and a change occurs. Evidence of a chemical change: Fizzing, bubbling, or releasing gas Temperature change. Forms a new substance. (precipitate)

12. Weight of Water 1ml of water weighs 1 gram 50ml of water weighs 50 grams 90ml of water weighs 90 grams

13. Venn Diagrams