You leave ice cream in the car on a hot day. When you get home you put it in the freezer. Describe the changes of state the object will go through.
Question 12
12.
You place a small piece and a large piece of chocolate out in the sun. Which one will melt first? why is this?
Question 13
13.
Observe the image above of the molecules in solids and liquids. Identify two differences. Hint - think of our movement game we did back in lesson three!
Which solid melts at 0 degree's celcius?
Ice
Chocolate
Cheese
Solids have a fixed shape and volume. However, liquids have a
Fixed volume, different shape
Different volume, fixed shape
Both the volume and shape is different
A material becomes a solid as a result of
Heat added
Heat removed
Cold added
Cold removed
The mass of a solid when it melts to a liquid will be
Heavier
Lighter
The same
A piece of metal is a solid in a freezer, and remains a solid outside. Why is this?
Metal cannot melt
The melting point of the metal is higher than the temperature outside
There is no water in it
When an object changes state, the properties are different but the actual material remains the same.
True
False
Both a small and large object of the same material, in the same temperature, will melt at the same time.
True
False
Ice cream is a liquid.
True
False
When a material melts it will eventually turn to water.
True
False
The molecules of a solid are fixed, vibrate and do not move.
