Homogenous and Heterogeneous Mixtures

Take young geologists on an exploration of the collection of rocks and minerals that we call Earth with an upper-elementary science lesson. Through a series of class discussion and hands-on investigations, learners learn about the...

Young geologists begin exploring volcanoes of different structures and states: active, extinct, or dormant. During the lab, they make three models and compare different types of volcanoes, including composite, cinder cone, and...

From their sweat to the water vapor in their breath, astronauts recycle every possible drop of water while in space. After watching a short video describing the different ways materials are recycled and reused in space...

Students explore matter by conducting an in class demonstration. In this liquid mixture lesson, students identify the difference between a solution in which a solid dissolves into liquid, and a suspension where the solid doesn't dissolve...

The moon orbits Earth while the Earth is rotating, and the Earth revolves around the sun. This can be a tricky concept for young astronomers. Implement an activity that helps distinguish between the movements of Earth's systems around...

Here is a comprehensive and colorful collection of slides to introduce 4th - 8th graders to all things weather-related. The factors that contribute to weather are defined, types of clouds and the related conditions are explained, air...

Mix it up at a party as Sam and Zoe discuss heterogeneous and homogenous mixtures and solutions. Follow this film by allowing your class to put together individual snack foods to make their own mixture!

Defines matter, substances, and mixtures and gives examples.

In this activity, students investigate the properties of a heterogeneous mixture, trail mix, as if it were a contaminated soil sample near a construction site. This activity shows students that heterogeneous mixtures can be separated by...

This lesson plan introduces the properties of mixtures and solutions. A class demonstration gives the students the opportunity to compare and contrast the physical characteristics of a few simple mixtures and solutions. Students discuss...