HANDS-ON ACTIVITY#1:

1. Get 2 transparent glasses (same size)

2. Put the same volume of water in both of them. In one of the glasses put cold water

and in the other glass put hot water.

3. Place the 2 glasses side by side and let the water sit for a few seconds.

4. Put a drop of food dye in each of the glasses.

Use your cell phone to take a picture of this hands-on activity. You will need to

submit this picture and your photo ID to DB 2.

Answer the following questions:

Why does 1 drop of the dye stain the entire volume of water?

Does the staining of the entire volume of water happen faster/slower/or at

the same speed in the hot water compared to the cold water? Why?

HANDS-ON ACTIVITY#2:

This experiment will take you 3 days to complete. Perform the experiment

and answer questions 1 to 7 in this hand-out.

Use your cell phone to take pictures of this hands-on activity. You will need to

submit these pictures and your photo ID to DB 2.

An unfertilized chicken egg contains a large cell surrounded by egg white, a shell

membrane, and an egg shell. You will investigate how the size of an egg changes

when the eggshell is removed and the egg is placed in different types of liquid.

➤ Get 2 eggs. To begin, record the weight or circumference of each egg in the day 1

row in the table. (Measure the circumference around the widest part, not

lengthwise.)

Day

1

2

Egg 1

Egg 2

Weight (grams) (or circumference (cm)) Weight (grams) (or circumference (cm))

(with shell)

(with shell)

(after a day in vinegar

most of shell removed)

(after a day in vinegar:

most of shell removed)