2. MATTER

3. MATTER: features Mass: Mass: how much matter an object has. It is measured in gr. & kg. What object do you think have more amount of matter? Straw Iron

4. MATTER: features Volume: Volume: the amount of space that matter takes up Which balloons take up more space? FULL Balloons EMPTY Balloons

5. MATTER: States

7. Solids have a DEFINITE SHAPE Solids have a DEFINITE SHAPE Solids have a DEFINITE VOLUME Solids have a DEFINITE VOLUME Solids have STRONG BONDS Solids have STRONG BONDS

8. Liquids DON’T have a DEFINITE SHAPE Liquids DON’T have a DEFINITE SHAPE Liquids have a DEFINITE VOLUME Liquids have a DEFINITE VOLUME Liquids have WEAK BONDS Liquids have WEAK BONDS

9. Gases DON’Thave a DEFINITE SHAPE Gases DON’Thave a DEFINITE SHAPE Gases DON’T have a DEFINITE VOLUME Gases DON’T have a DEFINITE VOLUME Gases DON’T have BONDS Gases DON’T have BONDS

10. Let’s remember the states of matter and their characteristics

11. Changes in Matter Physical changeChemical change Changes in shape Changes in state SAME SUBSTANCE NEW SUBSTANCE IS PRODUCED

12. Let’s play… What kind of change has happened? And what force is applied? PHYSICAL CHANGE TWISTING HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR

13. Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR CHEMICAL CHANGE EXPOSING TO AIR

14. Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR CHEMICAL CHANGE BURNING

15. Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR PHYSICAL CHANGE SQUASHING

16. Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR PHYSICAL CHANGE HEATING

17. Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR PHYSICAL CHANGE FREEZING

18. Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR CHEMICAL CHANGE BURNING

19. Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR PHYSICAL CHANGE HEATING

20. Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR CHEMICAL CHANGE

21. Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR CHEMICAL CHANGE BENDING

22. Let’s play… What kind of change has happened? And what force is applied? HEATFREEZEBENDTWISTSTRETCHSQUASHBURN EXPOSE TO AIR PHYSICAL CHANGE STRETCHING

23. MIXTURES HETEROGENEOUSHOMOGENEOUS We can see the substances easily We cannot see the substances easily

24. Properties of materials Materials have different properties They can be… RESISTANT (Material DIFFICULT to BREAK)

25. Properties of materials Materials can be… FRAGILE (Material EASY to BREAK) RIGID (Material DOESN’T BEND easily) FLEXIBLE (Material EASY to BEND)

26. Properties of materials Materials can be… ELASTIC (RETURNS to its original shape) TRANSPARENT (LIGHT CAN PASS through them) OPAQUE (LIGHT CAN’T PASS through them)

27. Properties of materials Materials can be… WATER PROOF (WATER CAN’T PASS through them) HEAT CONDUCTORS (HEAT PASSES through easily) HEAT INSULATORS (HEATCAN’T PASS through them easily)