'Discovery education player' presentation slideshows

The American West in the Late 1800s

743 views • 21 slides

Simple Machines

Simple Machines. Machines. Machines make work easier. Machines allow you to use less force to do work. work and energy video 13:00 min. Levers. A lever is a long bar with a support. The fulcrum supports the weight of the bar and what the bar carries.

368 views • 20 slides

Protons make the element what it is !

- Composition Notebook Isotopes are atoms of the same element that have a different number of neutrons in their nuclei. . Protons make the element what it is !. Isotopes of an element will have the same number of protons but a different number of neutrons .

274 views • 14 slides

The Cell Cycle

282 views • 14 slides

437 views • 10 slides