There's no need to don a space suit if you want to experience weightlessness. In this video segment adapted from ZOOM, two members of the cast drop a cup of water with holes in it to demonstrate how free fall can create a momentary condition of "weightlessness".
Recommended for: Grades K-8

This UC Berkeley site extensively covers the death of the dinosaurs. It includes history, theories, invalid hypotheses, and current arguments.

This video/animation defines matter, mass, and volume using water as an example. The size, electrical charge and location of the subatomic particles of matter are described. Different types of atoms are called elements and organized in the periodic table. What happens to the properties of atoms when they exist alone or together? [1:16]

Looks at word problems involving metric mass. [4:00]

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This pathway explores the fundamental concept of energy, and how energy can be transferred between objects. Different types of energy are defined, and the law of conservation of energy is explained. Simple machines are explained as a way of making energy transfer between objects easier. Problems are provided to check understanding.

This interactive resource from the Exploratorium calculates your weight on other bodies in our solar system and offers an explanation of mass and weight and the relationship between gravity, mass, and distance.

This interactive resource from the Exploratorium calculates your weight on other bodies in our solar system and offers an explanation of mass and weight and the relationship between gravity, mass, and distance.

The purpose of this activity is to demonstrate Newton's 3rd Law of Motion, which is the physical law that governs thrust in aircraft. The students will do several activities that show that for every action there is an equal and opposite reaction.