1. Science Station Solid Matter

2. Welcome! Today we will begin looking more closely at solid matter and the physical properties of solid matter!

3. Review In our last lesson we looked at one solid, a copper coin, one liquid, water, and one gas, air, and investigated their physical properties. We found out that some matter has physical properties in common, while there are also a lot of differences. Today we will look only at solid matter and see if their properties are all the same or if their properties can be different.

4. Video to Help Us With Lesson

5. Solid Matter Can you think of any examples of solid matter? Today we will discuss these solid matters: Wood Plastic Glass Metal Rubber

6. Physical Properties of Wood StrengthHardness Wood is very strong. It is so strong that it is used to build houses. This means it can hold a lot of weight. Wood is hard. This means it is not easy to change wood when you put pressure on it.

7. Physical Properties of Wood Flexibility Wood can be flexible if it is thin enough. If it is thick, wood is not very flexible. This means wood can bend if it is thin enough.

8. Flexibility of Wood

9. Physical Properties of Wood Flexibility Ability to conduct electricity Wood can be flexible if it is thin enough. If it is thick, wood is not very flexible. This means wood can bend if it is thin enough. Wood does not carry electricity.

10. Physical Properties of Wood Ability to conduct heat Wood will heat up if you light it on fire (which you should never do without an adult). Wood helps create fire and will turn to ash.

11. Physical Properties of Wood Ability to conduct heat Wood will heat up if you light it on fire (which you should never do without an adult). Wood helps create fire and will turn to ash.

12. Physical Properties of Wood Ability to be attracted by a magnet Wood is not attracted to a magnet. If you try to move or pick up a piece of wood with a magnet, nothing will happen.

13. Physical Properties of Plastic StrengthHardness The strength of plastic depends how thick or thin it is and what other materials are in it. Some are strong, others are not. Some plastic can scratch easily while others resist scratches. Therefore the hardness of plastic depends on the type of plastic.

14. Plastic

15. Physical Properties of Plastic Flexibility Ability to conduct electricity Plastic is flexible, meaning that it can bend easily. The thicker the plastic the less you will be able to bend it. Think of plastic wrap or a plastic bag. These plastics are very thin and can bend easily. Plastic has the ability to conduct some electricity, but very very little.

16. Physical Properties of Plastic Ability to conduct heat Ability to be attracted by a magnet Plastic will heat up if you light it on fire (which you should never do without an adult). The plastic will melt when it reaches a certain temperature. Plastic will not be affected when close to a magnetic. Therefore it is not magnetic!

17. Physical Properties of Glass StrengthHardness Glass is strong meaning that it can hold weight. However, if you have thin glass, it will not hold a lot of weight. Glass can be scratched but it is still harder than a lot of other minerals and materials.

18. Physical Properties of Glass Flexibility Ability to conduct electricity Glass is not easily bent when it is cold. Therefore cold glass is not flexible. However, hot glass can be bent to take a certain shape. Hot glass is flexible. With enough strength it is possible, but not very likely.

19. Physical Properties of Glass Ability to conduct heat Glass can conduct heat. This means that glass can heat up. When people make glass dishes and vases they will heat the glass up and bend it to take a certain shape. Pretty cool! Video

20. Physical Properties of Glass Ability to conduct heat Ability to be attracted by a magnet Glass can conduct heat. This means that glass can heat up. When people make glass dishes and vases they will heat the glass up and bend it to take a certain shape. Pretty cool! Glass is not magnetic.

21. Physical Properties of Metal StrengthHardness Most metals are strong. They can hold a lot of weight. Metal is used to build houses! Most metals are hard. Sodium and Potassium are two metals that are not hard! Most metals aren’t scratched easily.

22. Physical Properties of Metal Flexibility Ability to conduct electricity Metal can be flexible when it is thin! The thicker it gets, the less flexible it will be. Some metals are thicker than others. Metals can carry electricity! Some metals carry electricity better than others.

23. Physical Properties of Metal Ability to conduct heat Ability to be attracted by a magnet Heat can travel through metal. Some types of metal heats up and cools off faster than other types of metal. A lot of metals are magnetic like iron, cobalt, and nickel. Some are not, like copper and aluminum.

24. Rubber

25. Physical Properties of Rubber StrengthHardness Rubber isn’t very strong because it can be changed very easily when pressure is exerted on it. Rubber can be scratched easily and therefore is not very hard.

26. Physical Properties of Rubber Flexibility Ability to conduct electricity Rubber can bend easily, therefore, it is flexible. Rubber does not allow electricity to flow through it.

27. Physical Properties of Rubber Ability to conduct heat Ability to be attracted by a magnet Rubber does not conduct heat. You might notice a rubber grip on a frying pan. This is used so that you can grab the pan without hurting yourself. Do not try this at home! Rubber is not magnetic and therefore, will not be attracted by a magnet.

28. Next Time Awesome job today! Next time we will discuss another solid, ROCKS!! See you then.