In the episode "Muck on Ice," Bob and his team build an ice skating rink for the Spring City Rockets, and Muck learns the properties of water. Now it is time for children to experiment with ice to enhance observation skills.
Bring out a bowl of water and have students dip their fingers in the water. Ask them to describe the temperature of the water. Is it hot, mild, cold? Ask the children what would happen if ice cubes were added to the water. How do they know? After placing ice cubes in the water, have the children dip their fingers in once more. What happened to the water? What are some new words they would use to describe the water?
Observing the States of Ice
Remind the group that Leo used the cold pipes under the white sheet to freeze the water. Water can come in a solid, liquid, or gas form. Using the Bob the Builder: My Ice Observations worksheet (found in the Student Handout section), have students observe the stages of ice. First, have them put the ice on a plastic plate and draw what they see. After leaving the ice out for some time, have the students observe what happened to the ice and record their findings in the next box. Finally, leave the plate out overnight. Upon returning in the morning, have children record their observation in the third box (it evaporated). Encourage them to add adjectives to describe their observations.
Drawing with Ice
After giving each student a piece of black construction paper, give one ice cube to each student. Have them use the cube as they would a marker or crayon to draw on the black paper. Ask them to think about how the lines show up on the paper when wet.
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