2. Matter and Magnets

3. Matter A.Every object that takes up space is made of matter.

4. States of matter A.Matter can exists in different states: solid, liquid, and gas. SolidLiquid Gas Water exists as a solid, liquid and gas.

5. Phase changes A.To change between the different states of matter, solid, liquid, and gas, water goes through phase changes. Solid Liquid Gas Phase changes can be caused by changes in temperature.

6. Water and phase changes video Click on image to play video clip. 1 min. 41 sec.

7. Phase change experiment Click on image to play video clip. 59 sec.

8. Boiling A.When water reaches the boiling point, it changes from a liquid to a gas, commonly called steam.

9. Condensation video clip Plays automatically. 51 sec.

10. Evaporation A.When water evaporates, it changes from liquid water to a gas without boiling. On a sunny day, water will quickly evaporate from this towel on the clothesline, and from the soil of the potted plant.

11. Evaporation as part of a cycle A.When water evaporates, it changes into a gas. Evaporation is part of the water cycle. Water in the ocean evaporates and then forms clouds.

12. Freezing When the temperature reaches the freezing point,water changes from a liquid state to a solid, commonly called ice.

13. Melting When ice melts, it changes from a solid to a liquid.

14. Physical properties remain the same A.Physical properties remain the same as the material is reduced in size. B.As an ice cube melts, it remains the same substance. A piece of paper that is torn in half is still paper.

15. Mass A.Mass is the amount of matter an object holds. B.Air has mass.

16. Matter has mass video Plays automatically. 2 min. 19 sec.

17. Volume A.As a balloon is blown up, the volume of air increases.

18. Physical properties remain the same A.Physical properties remain the same as the material is reduced in size B.When clay is cut into smaller pieces, the properties remain the same.

19. Physical properties remain the same A.When a log is cut into smaller pieces, the properties remain the same.

20. Made of parts A.Materials are composed of parts that are too small to be seen without magnification. B.A vehicle, a plant, a grain of sugar, and a drop of ink are alike because they are all made of smaller parts.

21. Time to Test Your Knowledge! The following slides contain released SOL test items.

22. Question #1 The picture shows a stick of clay. When the clay was cut into pieces,which of these was the only thing that changed? A.Its stickinessIts stickiness B.Its softnessIts softness C.Its shapeIts shape D.Its colorIts color

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25. Question #2 Some children are making mud balls. They cut the mud balls in half. Which of these changed when the mud balls were cut in half? A.The softness of the mud ballThe softness of the mud ball B.The size of the mud ballThe size of the mud ball C.The color of the mud ballThe color of the mud ball D.The stickiness of the mud ballThe stickiness of the mud ball

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28. Question #3 Which of these is used mainly for the sense of touch? A.EyesEyes B.EarsEars C.NoseNose D.SkinSkin

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31. Question #4 Which of these will change when a piece of wood is chopped into smaller pieces? A.The weight of each pieceThe weight of each piece B.The hardness of each pieceThe hardness of each piece C.The color of each pieceThe color of each piece D.The grain of each pieceThe grain of each piece

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34. Question #5 Which of these properties will change when a rock is broken? A.Its colorIts color B.Its shapeIts shape C.Its hardnessIts hardness D.Its textureIts texture

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37. Question #6 A car, a tree, a grain of sugar, and a drop of ink are alike because they are all made of — A.metalmetal B.sunlightsunlight C.smaller partssmaller parts D.air and waterair and water

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40. Question #7 The picture best shows that air has — A.massmass B.energyenergy C.oxygenoxygen D.moisturemoisture

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43. Question #8 A compass shows directions because the needle — A.is magneticis magnetic B.senses electricitysenses electricity C.is made of metalis made of metal D.turns clockwiseturns clockwise

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46. Which of these can move a nail lying on a table without touching the nail? A.A magnetA magnet B.A stringA string C.A wireA wire D.A rulerA ruler Question #9

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49. When water evaporates, it changes into a — A.solidsolid B.mixturemixture C.gasgas D.solutionsolution Question #10

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52. A piece of metal is probably a magnet if it — A.can pull some metals to itcan pull some metals to it B.has a dull metal colorhas a dull metal color C.becomes rusty in the rainbecomes rusty in the rain D.has the letter N on ithas the letter N on it Question #11

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55. Which of these changes the most as a balloon is being blown up? A.The temperature of the air outside of the balloonThe temperature of the air outside of the balloon B.The volume of air in the balloonThe volume of air in the balloon C.The kind of material that makes up the balloonThe kind of material that makes up the balloon D.The mass of the material that makes up the balloonThe mass of the material that makes up the balloon Question #12

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58. Magnets will stick to refrigerator doors because the doors are — A.painted with plasticpainted with plastic B.made of metalmade of metal C.easy to openeasy to open D.heavyheavy Question #13

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61. Which of these is attracted to a magnet? A.An iron nailAn iron nail B.A copper pennyA copper penny C.A silver spoonA silver spoon D.An aluminum panAn aluminum pan Question #14

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64. Question #15 Which object will be attracted to a magnet? A. B.C.D.

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67. Wow…. You are so smart! Click on the button to end this presentation.