Introduction to Soil Potassium and Demonstration of a Simple Test Procedure

It's time to roll up those sleeves and get a little dirty in the second lesson plan of this series on the science of food. Investigate where plants and animals get the minerals they need to live in this two-part exploration of soil....

Astronauts need a way to lift heavy objects. Pupils design and build a crane out of cardboard and determine ways to improve their cranes based upon the outcomes of testing. 

Trying to plan a physical science unit on forces and motion? Make your work a little easier with this comprehensive collection of simple machines resources. Offering a wide variety worksheets, activities, and projects, these materials...

Make your work as a teacher a little easier with a physical science project on simple machines. After introducing young scientists to these devices and identifying their different uses around the school, this project engages children in...

Planning an elementary science unit has never been simpler! These twelve lessons guide young scientists through an exploration of simple machines and their many uses in the real world before asking them to apply their learning in the...

Ready to roll up those sleeves and get your hands dirty? Dirty with soil science content, that is! Overcome those "But it's just dirt" objections with a trip outside to collect soil samples for some in-class analysis. Use the variety of...

It takes a minimum of 500 years to form one inch of topsoil. Young scientists conduct multiple observations and experiments on three different types of soil. The activity leads class members to a better understanding of pH, water...

Bubble, bubble, boil and trouble! What causes common substances like baking soda and vinegar to react the way they do? Welcome your junior chemists to the wonders of acid-base chemistry using a comprehensive and fun resource. Engage them...

As part of a study of soil and composting, fourth graders become worm farmers, build a vermiculture bin, observe, and care for their red worms.

Class members work in pairs to build a catapult to launch a grape a given distance. The catapult project, a compound machine, reinforces pupils' understanding of simple machines.