Sims

Position Time Graphs Walk toward and away from a motion sensor and match a position graph. Animal Motion Film an animal crossing the savanna and work out its speed. Constant Velocity Car Load a toy car with masses and measure how far it goes each second. The Moving Man Walk a man back and forth and graph his position and velocity.

Net Forces Push a stack of objects, add friction and see the net force change speed. Egg Drop Inertia Strike a tray out from under an egg. Does the egg land in the water? Forces and Motion: Basics Play tug of war and push crates to see what net force does.

How Friction Affects Speed Roll a car down a ramp onto four surfaces and time how far it goes. Does Friction Create Heat Rub your hands together and measure how much warmer they get. Determining How Mass Affects Friction Load a tray with masses and compare the starting and sliding force. Kinetic Energy and Stopping Distance Release a car from different heights and see how far it pushes a box. Friction Rub two books together and watch atoms heat up and break off.

Acceleration Carry a string accelerometer as you speed up, slow down and turn. Acceleration on a Ramp Change the ramp and cart, then use photogates to find the acceleration. Forces in 1 Dimension Push a cabinet, crate or fridge and graph how it accelerates.

Poker Chip Inertia Slide chips into a stack and count how many get knocked out. Balloon Rocket Blow up balloons of different sizes and measure how far they fly. Bouncing Ball Drop a ball from different heights and measure the first bounce. Ramp Collision Lab Roll one car into another and measure how far the second car goes. Inertia and Collisions Tap a rolling lab car and watch what a loose poker chip does. Crumple Zone Lab Design crumple zones, seat belts and airbags, then crash test the car. Newton's 3rd Law: Spring Scale Pull Pull two spring scales against each other and compare the forces. Collision Lab Crash balls of different masses and see momentum conserved.

Energy Skate Park: Basics Raise a skater on a ramp and watch potential energy grow.

Gravity Force Lab: Basics See how mass and distance change the pull of gravity. Gravity and Orbits See how gravity holds the earth and moon in their orbits.

Hot Wheels Potential Energy Pick a release height and see if the car makes it over the hill. Roller Coaster Physics Build a toy car coaster that reaches the egg without breaking it. Coaster Creator Design hills and loops with enough energy to finish, then stop safely. Sled Energy and Collisions Sled a polar bear down a hill into another bear. Where does the energy go? Energy Skate Park Change the skater's mass, add friction and graph the energy. Pendulum Lab Swing a pendulum and watch potential energy turn into kinetic.

Magnet and Compass Move a compass around a bar magnet to map its magnetic field.

Circuit Builder Drag a battery, bulb and wires onto the bench and complete the loop. Circuit Construction Kit: DC Build circuits with batteries, bulbs, wires and switches. Magnets and Electromagnets Add loops and current to make a stronger electromagnet. Faraday's Law Push a magnet through a coil of wire and light a bulb. Generator Use running water to spin a magnet and make electricity. Balloons and Static Electricity Rub a balloon on a sweater and see its charge pull on a wall.

Waves Intro Make water, sound and light waves and see what they share. Wave on a String Wiggle a string and change its frequency and amplitude. Sound Waves Change a speaker's pitch and loudness and watch the wave. Wave Interference Overlap two sets of waves and see them add up or cancel.

Bending Light Aim a laser into water and glass and watch the light bend. Color Vision Mix red, green and blue light and see what color the eye sees. Geometric Optics: Basics Move lenses and mirrors to bend light and make an image. Molecules and Light See what microwaves, infrared and UV light do to molecules.

Radio Waves and Electromagnetic Fields Shake electrons in a radio tower and send a signal to a house.

Heat Conduction Lab Join hot and cold water with a rod and see how fast heat moves through it. Heating Water Heat different amounts of water on a hot plate and graph the temperature. Hot vs Cold Diffusion Lab Drop dye into hot and cold water and see which mixes faster. Energy Forms and Changes Heat and cool iron, brick, water and oil and watch energy flow.

States of Matter Pick a substance and watch its particles as a solid, liquid and gas. States of Matter: Basics Heat and cool atoms and molecules and watch them change state. Gases Intro Pump gas into a box and see where its pressure comes from.

Freezing Point of Stearic Acid Let melted stearic acid cool and graph what happens as it freezes. Phase Changes Heat or cool water and watch it melt, boil and freeze up close. Pressure and Phase Changes Heat it, squeeze it or pump in molecules and watch the phase diagram. States of Matter Heat, cool and squeeze molecules and follow the phase diagram.

Molecular Model Kit Take atoms out of the kit and snap them together to build molecules. Build an Atom Add protons, neutrons and electrons to build an atom. Build a Molecule Join atoms to build water, carbon dioxide and more.

Density Block Lab Put blocks of different materials on a balance and find their density. Flame Test Demo Heat a salt in a flame and use the color to name the metal. Density Find the mass and volume of blocks to work out their density. Reactions and Rates Collide molecules and see what makes a reaction speed up.

Rates of Chemical Reactions Drop an Alka-Seltzer tablet into warm or cold water and time the fizz. pH / Endo-Exo Reactions Test the pH, then mix reactants and see if they give off or take in heat. Chemical Changes Lab Mix two substances and look for signs of a chemical change. Balancing Chemical Equations Change the numbers in front of each formula so atoms balance. Reactants, Products and Leftovers Make sandwiches and molecules and count what is left over.