Physical Science

18 months & up. The smooth, pleasing texture of the River Rocks invites children to engage in one of the early STEM activities listed in the included set of activity cards. Children can stack, sort, and use the River Rocks in the water table and a variety of other areas in the learning environment. Children will build a strong foundation in basic science, technology, engineering, and math skills. Incorporating River Rocks into the learning environment is the perfect way to introduce STEM for… More »

Explore light and reflection safely with this set of 12 shatterproof mirrors. Each mirror is 3" x 4".

Grades 3 & up. Students build explore and experiment with functioning simple machines that demonstrate essential science and technology concepts. This set includes a teaching resource guide, building materials, and a full-color student guide with real-life photos and key facts. Resource CD includes teaching notes, building instructions, and extension activities. Materials store conveniently in a sturdy, plastic tub with adjustable divider. 221 pieces. Made in the USA.

This model is composed of three identical wooden gears mounted on a base with a hand turn crank. It is made from sturdy wooden construction and is ideal for classroom use. The model shows how gears work at a basic level to make work easier. Includes an instruction manual. Made of particle board and wooden components. Measures 16 1/4"W x 6 1/2"H x 3 1/2"D.

This model is an inclined plane with a pulley, small cart, string, and grooves for wheels. It is made from sturdy wooden construction and is ideal for classroom use. Students will be able to study several different simple machine concepts with this set. Includes an instruction manual. Made of particle board and wooden components. Measures 16 1/2"W x 3 1/4"D with an adjustable height.

This model is composed of three pulleys mounted on a base with a string and hooks. It is made from sturdy wooden construction and is ideal for classroom use. The model shows how several pulleys work together to increase one's mechanical advantage. Includes an instruction manual. Made of particle board and wooden components. Measures 16 1/4"W x 6 1/2"H x 3 1/2"D.

This model is composed of a base with a wheel and axle that forms a crane. It is made from sturdy wooden construction and is ideal for classroom use. The model shows how wheels and axles work to lift items from the ground. Includes an instruction manual. Made of particle board and wooden components. Measures 9 1/2"W x 4 1/2"H x 3 3/8"D.

This model is composed of an adjustable wedge. It is made from sturdy wooden construction and is ideal for classroom use. The model demonstrates how a wedge can increase mechanical advantage. Includes an instruction manual. Made of particle board and wooden components. Measures 13 5/8"W x 3 5/8"D with an adjustable height.

This model is composed of a base and elevated board holding a screw. It is made from sturdy wooden construction and is ideal for classroom use. The model will show students how additional leverage can be useful. Includes an instruction manual. Made of particle board and wooden components. Measures 7 1/2"W x 4"H x 4"D.

This model is composed of a rigid body and swinging pendulum. It is made from sturdy wooden construction and is ideal for classroom use. The pendulum is adjustable allowing students different variables from which to study motion. Includes an instruction manual. Made of wooden components. Measures 6 1/2"W x 15 1/2"H x 3 1/2"D.

This model is composed of a base with an adjustable fulcrum. It is made from sturdy wooden construction and is ideal for classroom use. The model shows how a simple lever works. Includes an instruction manual. Made of particle board and wooden components. Measures 8 5/8"W x 5 1/4"H x 2 1/4"D.

What is a fossil? Sometimes it's the imprint of an ancient leaf in a rock. Sometimes it's a woolly mammoth, frozen for thousands of years in the icy ground. Sometimes it's the skeleton of a stegosaurus that has turned to stone. A fossil is anything that has been preserved, one way or another, that tells about life on Earth. But you can make a fossil, too - something to be discovered a million years from now - and this book will tell you how.