Materials
1. Talk about weighing items on a balance scale.
2. Ask the children to choose two items to compare in weight.
3. Encourage them to predict which will be heavier.
4. Let the children take turns weighing the items to check their predictions.
5. Do this with a variety of classroom items.
6. Invite them to add two things to each side of the scale and compare.
7. This is a great hands-on comparison of weights.
Instructions
1. Read about whales and other large fish. Show the children pictures of whales.
Explain that the blue whale is the largest type of whale, and may reach a
length of 98 feet. Find out the sizes of other whales and record their lengths.
2. Help the children measure the length and width of different whales in the
school gym or a long hallway. Use chalk or masking tape to draw the whale.
Note: If you do not have a 100' tape measure, use a shorter tape measure
and mark the end of each length and start over at the mark until you reach
the length of the whale.
3. See how many children can stand, sit, and/or lie down inside the different
whales.
