![Tennis Balls Tennis Balls](/sites/default/files/styles/resource_card_image_360x300_/public/PM_Tennis_Balls.jpg?itok=rGSq-yLm)
Bouncing Objects
Picture Collections
10 images of some spherical objects such as golf balls and tennis balls that are made of different materials and used for specific purposes
![Assortment of souvenir magnets on the fridge](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/souvenir-magnets-on-the-fridge.jpg?itok=pMIVtKoG)
Magnificent Magnets
Lessons
Students develop and apply the skills of sorting & classifying, comparing & contrasting and predicting as they explore magnetism as a non-contact force that causes movement.
![How can I make an egg float?](/sites/default/files/2019-08/how-can-i-make-an-egg-float.jpg)
How can I make an egg float?
Hands-on Activities
In this challenge activity find out if you can get an egg to float. Learn how the density of matter affects the buoyancy of objects.
![How can I make my own weighing scale?](/sites/default/files/2019-08/how-can-i-make-my-own-weighing-scale.jpg)
How can I make my own weighing scale?
Hands-on Activities
Make a scale from simple materials and test it to measure weight.
![How can I move water with just a comb?](/sites/default/files/2019-08/how-can-i-move-water-with-just-a-comb.jpg)
How can I move water with just a comb?
Hands-on Activities
Have you ever experienced static electricity? Like when you pull a wool sweater over your head in the winter? See what else static electricity can do in this hands-on activity.
![How can you lift a marble off a table without touching it with your hands?](/sites/default/files/2019-08/how-can-you-lift-a-marble-off-a-table.jpg)
How can you lift a marble off a table without touching it with your hands?
Hands-on Activities
Is it magic? No - it’s physics! Use circular motion to overcome the force of gravity and amaze your family!
![How does a wheelbarrow help you carry heavy loads?](/sites/default/files/2019-08/how-does-a-wheelbarrow-help-you-carry-heavy-loads.jpg)
How does a wheelbarrow help you carry heavy loads?
Hands-on Activities
In this hands on activity build a wheelbarrow from simple materials to explore just how useful simple machines can be!
![How can I build a rollercoaster?](/sites/default/files/2019-08/how-can-i-build-a-roller-coaster.jpg)
How can I build a rollercoaster?
Hands-on Activities
Try your hand at building a “super coaster” using materials around your home.
![How can I engineer a raft so that it holds the most weight?](/sites/default/files/2019-08/how-can-i-engineer-a-raft.jpg)
How can I engineer a raft so that it holds the most weight?
Hands-on Activities
Explore the forces of gravity and buoyancy while designing a raft to hold the most weight possible.
![Boy on bicycle](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/Boy_on_bicycle.jpg?itok=7WxcxIVE)
How Can I Go Faster on My Bike?
STEM Explained
You don’t have to pedal harder to go faster. You just have to understand a little bit about gravity, drag and friction!
![Asteroids](/sites/default/files/styles/resource_card_image_360x300_/public/2019-12/Asteroids.jpg?itok=n6XI2gZ2)
Where Can We Find Asteroids and Comets?
Backgrounders
This backgrounder explains the difference between planets, dwarf planets and small solar system bodies, such as asteroids and comets.
![Wooden toy train](/sites/default/files/styles/resource_card_image_360x300_/public/2019-11/Wooden_toy_train.jpg?itok=5Jn1_Kkv)
Design & Build a Toy that Moves
Lessons
Students will work collaboratively to design and build a toy that is moved using forces applied by magnets.
![Planet and asteroid orbits around the Sun](/sites/default/files/styles/resource_card_image_360x300_/public/2019-09/Planet_and_asteroid_orbits_around_Sun.png?itok=Vp9Ht9tN)
Orbital Mechanics
Backgrounders
This backgrounder helps explain the laws of Orbital Mechanics, including Newton’s Laws.