Let's Catch Some Dirt
Activities to demonstrate both solid and liquid pollutants in the air.

Environmental Fair
Activity to teach reuse of something in the trash and make it into something different. (Solids)

Ooey, Gooey Recipes for Classroom by Kidsphere
Mixing solids and liquids can create lots of fun things. Some of the recipes are: Gak, Playdough, Cornstarch Clay (Silly Putty), Edible Fun Dough, Oobleck or Goop (Play Slime), etc.

Mixtures
Experiment with graphics to teach the difference between salt water and distilled water. Mixtures of solids and liquids is focus.

Solids and Liquids
After making FOSS tower with solids try this activity. Also take a look at the Tower Gallery of real towers and photos of ones the students made. After the liquid and liquids mixed together activities, and the solids and liquids mixed together, take the On-line Quiz that was written by First Graders!

Liquid Basics: So You Want To Be A Liquid?
Discusses what the properties of a liquid are in a rather interesting way. The children can imagine themselves to have these
properties and how it would feel.

Solid Basics: So You Want To Be A Solid?
Discusses what the properties of solids are in a rather interesting way. The children can imagine themselves to have these properties and how it would feel.

Matter and Heat
Activity involving students to demonstrate the relationship between molecules and the state of matter. Students become the molecules and demonstrate how they are arranged and moving as they are heated up. Should be a great kinesthetic activity.

Oobleck: Liquid and Solids
45 Minute lesson on investigating an unusual material (Cornstarch and Water) and identify it's properties and decide if it is solid or liquid.