National Engineers Month

	Activities by Grade	K - 2		5 - 8
		3 - 4		9 - 12

Wet and Wetter Water

• Two dixie cups

• Laundry Detergent

• Small cotton balls (about the size of a small pea), or 1/2" lengths of yarn or string.

• Fill both Dixie Cups with water. Label them "A" and "B"

• Into cup "A" mix a little detergent. Do not stir up suds.

• Drop a cotton ball or string into cup "A" and cup "B" at the same time.

• What happened to the cotton balls?

• Was there any difference in the "wetting" time between "A" and "B"?

• Why do we add detergents in the family wash?

• Can water be made "wetter" than "wet"?