Density Lesson. Science.

LESSON. Faasua, Selam, Sefanaia, Atita.

Density: means the measure of how solid something is.

For Example:

• A desk
• The ground
• ect.

Prediction #1-No.1:

• When the oil is in the jar of water there could be bubbles floating around at the top.
• The water and the oil could mix together and the oil will end at the top of the jar.

Observation # 1-No.1 :

• As soon as the oil mixed with the water there were bubbles.
• The bubbles floated to the top of the jar, then the oil just stayed at the top of the jar and is now settled in it’s normal position.
• The oil is in one lane on the top of the jar.
• There are small tiny bubbles inside the oil lane.

Observation #2-No.2:

• The straw is sucking in the oil and water and letting it out when it is out of the jar.
• There are small bubbles everywhere.
• It looks like a tornado when you spin the straw really fast and hard.
• There is an oil layer and a bubble layer.
• The oil layer has gone bigger.
• There is no more clear water.
• The oil has turned into millions of bubbles.
• The oil looks a little bit clear but has a lot of bubbles in it.

Prediction #3-No.3:

• The food colouring might reach the water and change the waters colour or just mix with the oil and change the oil’s colour.
• The food colouring might sink to the bottom.
• The food colouring might make another layer.

Observation #3-No.3:

• the food colouring is mixing with the oil.
• The drops are dropping down from the oil layer.
• It is going to reach the water.
• It has reached it’s destination.
• The colouring is spreading out.
• When you mix it up it looks like jelly.
• It looks like a tornado when you spin it.