Over the course of its 4.5 billion-year history, Earth has undergone a great number of changes -- from a red-hot ball of molten lava to a planet with an environment capable of sustaining life. In All About Earth's History, children will trace the evolution of Earth and the organisms that populate it. Young viewers will take a peek deep inside the Earth, examining its varied layers while discussing how scientists use fossils to help map out the complex time line of events that has changed Earth over millions of years. A visit to the Grand Canyon examines the rock layers of this famous land formation, revealing how the climate of the region has changed over time. A lively, hands-on activity demonstrates how scientists use core samples to study the Earth. Part of the Earth Science for Children DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.
They shake the ground underfoot, causing tremors that, at their worst, can leave cracks in highways and topple buildings. But for the most part, earthquakes are constantly rumbling through the Earth with a force that's barely detectable. But why do they occur? In All About Earthquakes, children will examine the forces at work that cause earthquakes and discover the instruments that scientists use to predict and measure these earthly tremors. A visit to Mammoth Lakes in California showcases an advanced network of lasers that measures ground movement in the area, while a fun, hands-on activity demonstrates how architects test their designs by using a shaker table. Part of the Earth Science for Children DVD Series. A Teacher's Guide is included and available online. 23 minutes. Grades K to 4.
Use alone or together with Metric Set for comparison activities. Set of hexagonal, plastic-coated weights contains eight 1 oz weights, two each of 4 oz and 8 oz weights, and one 1 lb weight. Stackable, color-coded weights with beveled edges come in a plastic storage box. Set of 13. Ages 8-13.
Combines mathematics, geometry and aesthetics into a magical motion of surprising simplicity, beauty and fun. Its system of polymer links expand and contract almost effortlessly, changing in volume 30 times. A sturdy toy, an object of art, a tool for teaching mathematics and science - the Hoberman Sphere's universal appeal and versatility have led its owners to discover uses even its inventor never dreamed of. Children love to wear it on their heads, or climb inside. Grown-ups have proved themselves no less inventive: jugglers juggle with them. Drill teams march with them. Magicians make magic with them. Teachers teach geometry with them. Motivational speakers use them as metaphors for unity, teamwork and expanding potential. Ages 4 and up. Expands from 9.5" to 30".
Loved by kids for more than 20 years, this best seller got better! Perform astounding feats of magnetism as you playfully explor magnetic forces, motion, and stability. Integrates geometry and art too discuss shapes, positions, planes, symmetry, and more. Fourth edition includes additional coins plus a whopping 44 activities. Ages 8+/Grades 3+. Set includes: 2 super strong magnets encased in stainless steel, 32 newly-minted British pennies plus a bonus US penny, and an activity booklet packed with magnet facts, penny history, and 44 activities.
Useful for demonstrating momentum, conservation of energy and torque! The unit is suspended by two strong cords, which are wound around the shaft of the wheel and then released. The wheel will unwind as it falls but will wind itself back up as the momentum carries the wheel upward in the opposite direction. This oscillation process will continue for several moments as the wheel slowly loses momentum and travels less each time. Instructions included.
It’s time to start mixing things up! In this pretend STEM scenario, you are a chemist for a bath and body products company and it’s your job to make and test different cosmetic products. Use the tools in your laboratory to employ different scientific techniques and essential chemistry principles to make soaps and bath bombs. Try out different additives to affect the color, smell, and other qualities of the products you make.
Real science and pretend play come together in this activity-filled kit that can be used alone or as an extension of the Ooze Labs Chemistry Station (a Parents’ Choice Silver Honor winner!). As you mold different glycerin soap shapes, you learn about the chemical properties of soap that help it pick up and wash away dirt. While you’re concocting bath bombs, you learn about how acids and bases combine to form fizzing reactions, and what a pH level is. Expand your cosmetics knowledge with an overview of the biology of skin care and other science related to soap and bath products. All materials and chemicals are non-toxic.
Ages: 6+
Experiments: 10
Piece Count: 35
Manual Pages: 24
• Build a realistic wind turbine to harness power out of thin air.
• Assemble a wind turbine complete with electric generator and adjustable blades
• Conduct experiments to optimize its performance by adjusting the blades
• Convert the wind turbine into an electric fan by using the electric generator
• Build three additional models with the parts included
• Conduct more than 20 experiments with your wind turbine
Build a working wind turbine to harness power out of thin air. Wind is one of the most promising sources of clean, renewable energy available today. Wind energy has been used for centuries to pump water and crush grain in windmills, and is now increasingly being used to generate electricity to power our modern world. Assemble a wind turbine complete with electric generator, adjustable rotors, and wind speed indicator. Conduct more than 20 experiments with your wind turbine. Use the wind turbine to generate mechanical power to lift a heavy weight or generate electricity. Learn the physics of force and motion as it applies to wind power technology. Learn how to measure and calculate the different forces acting on the rotor blades. Read about different types of wind turbines and windmills. The full-color, 32-page experiment manual included. Ages 8 and up.
Hydropower has been used for hundreds of years in watermills and is now commonly used to generate electricity in applications such as hydroelectric dams and tidal power plants. Explore the power of water by building models and conducting experiments with them. Learn about how different devices are used to extract useful energy from moving water — from a waterwheel in a small stream to a giant turbine in a tidal power station.
Build a waterwheel, a sawmill, and a hammer mill to harness the energy of moving water to do different types of physical work. Investigate the intriguing properties of water by performing experiments involving surface tension, adhesion, and cohesion. Learn about water pressure by building a water tower, communicating vessels, and a water fountain.
Construct a hydroelectric power station to generate electricity and light an LED. Learn about where the energy in ocean waves, tides, and rivers comes from, and discover how we can generate electricity from them. The full-color, 32-page experiment manual offers illustrated instructions and scientific information.
12 Experiments and building projects
Harness mechanical energy from water to do physical work
Generate electricity to light an LED Learn the physics of water turbines
Discover why hydropower is a promising source of energy.
Ages: 8+
Experiments: 12
Piece Count: 105
Manual Pages: 32
Product Dimensions: 14.6 x 11.5 x 2.3 in.
Product Weight: 2.1 lbs
Manual Dimensions: 5.5 x 8.25 in.
Batteries Required: N/A
Country of Origin: Taiwan
Year Released: 2009