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Matter around us
- 2.
- 3. MATTER: features Mass: howmuch 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: theamount of space that matter takes up Which balloons take up more space? FULL Balloons EMPTY Balloons
- 5.
- 7. • Solids havea DEFINITE SHAPE • Solids have a DEFINITEVOLUME • Solids have STRONG BONDS
- 8. • Liquids DON’Thave a DEFINITE SHAPE • Liquids have a DEFINITEVOLUME • Liquids have WEAK BONDS
- 9. • Gases DON’Thavea DEFINITE SHAPE • Gases DON’T have a DEFINITEVOLUME • Gases DON’T have BONDS
- 10. Let’s remember thestates of matter and their characteristics
- 11. Changes in Matter Physicalchange Chemical change Changes in shape Changes in state SAME SUBSTANCE NEW SUBSTANCE IS PRODUCED
- 12. Let’s play… What kindof change has happened? And what force is applied? PHYSICAL CHANGE TWISTING HEAT FREEZE BEND TWIST STRETCH SQUASH BURN EXPOSE TO AIR
- 13. Let’s play… What kindof change has happened? And what force is applied? HEAT FREEZE BEND TWIST STRETCH SQUASH BURN EXPOSE TO AIR CHEMICAL CHANGE EXPOSINGTO AIR
- 14. Let’s play… What kindof change has happened? And what force is applied? HEAT FREEZE BEND TWIST STRETCH SQUASH BURN EXPOSE TO AIR CHEMICAL CHANGE BURNING
- 15. Let’s play… What kindof change has happened? And what force is applied? HEAT FREEZE BEND TWIST STRETCH SQUASH BURN EXPOSE TO AIR PHYSICAL CHANGE SQUASHING
- 16. Let’s play… What kindof change has happened? And what force is applied? HEAT FREEZE BEND TWIST STRETCH SQUASH BURN EXPOSE TO AIR PHYSICAL CHANGE HEATING
- 17. Let’s play… What kindof change has happened? And what force is applied? HEAT FREEZE BEND TWIST STRETCH SQUASH BURN EXPOSE TO AIR PHYSICAL CHANGE FREEZING
- 18. Let’s play… What kindof change has happened? And what force is applied? HEAT FREEZE BEND TWIST STRETCH SQUASH BURN EXPOSE TO AIR CHEMICAL CHANGE BURNING
- 19. Let’s play… What kindof change has happened? And what force is applied? HEAT FREEZE BEND TWIST STRETCH SQUASH BURN EXPOSE TO AIR PHYSICAL CHANGE HEATING
- 20. Let’s play… What kindof change has happened? And what force is applied? HEAT FREEZE BEND TWIST STRETCH SQUASH BURN EXPOSE TO AIR CHEMICAL CHANGE
- 21. Let’s play… What kindof change has happened? And what force is applied? HEAT FREEZE BEND TWIST STRETCH SQUASH BURN EXPOSE TO AIR CHEMICAL CHANGE BENDING
- 22. Let’s play… What kindof change has happened? And what force is applied? HEAT FREEZE BEND TWIST STRETCH SQUASH BURN EXPOSE TO AIR PHYSICAL CHANGE STRETCHING
- 23. MIXTURES HETEROGENEOUS HOMOGENEOUS We cansee the substances easily We cannot see the substances easily
- 24. Properties of materials Materialshave different properties They can be… RESISTANT (Material DIFFICULT to BREAK)
- 25. Properties of materials Materialscan be… FRAGILE (Material EASY to BREAK) RIGID (Material DOESN’T BEND easily) FLEXIBLE (Material EASY to BEND)
- 26. Properties of materials Materialscan be… ELASTIC (RETURNS to its original shape) TRANSPARENT (LIGHT CAN PASS through them) OPAQUE (LIGHT CAN’T PASS through them)
- 27. Properties of materials Materialscan be… WATER PROOF (WATER CAN’T PASS through them) HEAT CONDUCTORS (HEAT PASSES through easily) HEAT INSULATORS (HEATCAN’T PASS through them easily)