Put powders in plastic bags with spoons and liquids in beakers. Mark powders and liquids as P1, L1, etc. Today you will observe and record what happens when mystery powders and liquids are combined. Tearing paper, opening a soda can, adding water to a sponge, body changes from growing up, steel wool rust, boiling water. Which liquid caused bubbles.
Teacher reviews three types of variables.
Discuss ways to perform accurate tests in mixing powders and liquids. Students conduct their investigations - mixing one powder with one liquid in each cup. The teacher facilitates the discovery process and supervises efforts to ensure safety and successful discovery experiences for all. Find out the 2 squares you're testing. Find a table to work at.