science station solid matter. welcome! today we will begin looking more closely at solid matter and...
TRANSCRIPT
Science Station
Solid Matter
Solid Matter
Welcome! Today we will begin looking
more closely at solid matter and
the physical properties of solid matter!
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.
Solid Matter
Can you think of any examples of solid matter? Today we will discuss these solid matters:
• Wood• Plastic• Glass• Metal
• Rubber
Physical Properties of Wood
Strength Hardness
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.
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.
Flexibility of Wood
Physical Properties of Wood
FlexibilityAbility 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.
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.
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.
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.
Physical Properties of Plastic
Strength Hardness
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.
Plastic
Physical Properties of Plastic
FlexibilityAbility 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.
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!
Physical Properties of Glass
Strength Hardness
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.
Physical Properties of Glass
FlexibilityAbility 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.
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
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.
Physical Properties of Metal
Strength Hardness
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.
Physical Properties of Metal
FlexibilityAbility 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.
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.
Rubber
Physical Properties of Rubber
Strength Hardness
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.
Physical Properties of Rubber
FlexibilityAbility to conduct electricity
Rubber can bend easily, therefore, it is flexible.
Rubber does not allow electricity to flow through it.
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.
Next Time
Awesome job today! Next time we will
discuss another solid, ROCKS!! See
you then.