Common plastic is made from petroleum, a fossil fuel and non-renewable resource. Increasingly, plastic products are being made from biomass which is made from renewable resources, often by-products of agricultural processes.
Besides being just plain fun, making butter is a great way to demonstrate one of the many ways food is made, as well as how liquids can be converted into solids. You can get more in depth and use the lesson to demonstrate phase change.
Animals, Chemistry, Food & Nutrition, Math & Measurements, Recipes, Science
| Age: K - 8th
This fast-moving relay race teaches students that before any product leaves a factory, or enters a store, it began as a resource or product of the natural world - most likely agriculture. Students will work in teams and run a relay race where they have to quickly decide the source of a product and then race to place it into one of the buckets marked Factory, Store, Farm or Earth.
Agriculture, Biology, Natural Resources
| Age: K - 12th
This is a two-part lesson that can be done over a week. It begins by using vinegar to dissolve an egg’s shell (dissolution) without breaking the membrane that contains the egg. The shell-less eggs are used in the second part of the experiment to study osmosis, the movement of water across a membrane
The worm “condo” built in this activity allows students to observe worms tunnel through the dirt and see their segmented body parts in action. When the class is done observing the worms, return them to their natural environment.