Materials:
1.) One clear plastic box
2.) blue and red food coloring
3.) 2 pipettes
4.) 6 cups (to hold up the box)
5.) One beaker (50 ml)
Objective:
The objective of this experiment was to see if the food coloring would stay at the bottom of the box if we pumped the coloring out of the pipette very slowly and carefully.
Procedure:
1.) Get your plastic box and place four cups under box
2.) Pump your pipette into the food coloring and make sure pipette is filled with food coloring.
3.) Put pipette filled with food coloring to the bottom of the box and carefully release the coloring.
4.) Don't forget to have water in the box before all of this (water must be hot)
5.) Get 2 more cups and fill with hot water
6.) Put the cups of hot water under the box where the food coloring is.
7.) Results will show that the food coloring will start rising
Questions and Answers:
1.) During the lab, what effect did the cups of hot water have on the density of the water directly above them? The density went down and decreased.
2.) What happened as a result of this change? The food coloring went up to the top of the surface of the water.
3.) You may have noticed convection cells in a pot of boiling
macaroni. Put arrows on the dashed lines in Figure 4 to show the direction of the flow in the pot. The hottest part of the burner is beneath the center of the pot.
1.) One clear plastic box
2.) blue and red food coloring
3.) 2 pipettes
4.) 6 cups (to hold up the box)
5.) One beaker (50 ml)
Objective:
The objective of this experiment was to see if the food coloring would stay at the bottom of the box if we pumped the coloring out of the pipette very slowly and carefully.
Procedure:
1.) Get your plastic box and place four cups under box
2.) Pump your pipette into the food coloring and make sure pipette is filled with food coloring.
3.) Put pipette filled with food coloring to the bottom of the box and carefully release the coloring.
4.) Don't forget to have water in the box before all of this (water must be hot)
5.) Get 2 more cups and fill with hot water
6.) Put the cups of hot water under the box where the food coloring is.
7.) Results will show that the food coloring will start rising
Questions and Answers:
1.) During the lab, what effect did the cups of hot water have on the density of the water directly above them? The density went down and decreased.
2.) What happened as a result of this change? The food coloring went up to the top of the surface of the water.
3.) You may have noticed convection cells in a pot of boiling
macaroni. Put arrows on the dashed lines in Figure 4 to show the direction of the flow in the pot. The hottest part of the burner is beneath the center of the pot.