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Sunlight, Energy, and Crayons text page, free electromagnetic spectrum, thermal energy, light, energy
Making an Electromagnet text page electricity, magnetism
Comb Kazoo text page pressure, sound, waves, force and interactions, energy
Bernoulli in the Shower? text page newton's laws, Variables and controls, critical thinking, observation, motion, engineering, pressure, structure and function, misconceptions, investigations and experiments, hypothesis, theory, and law, force and interactions
Marbles, Inertia, and Paper Plates text page, free newton's laws, critical thinking, inertia, observation, motion, friction, misconceptions, investigations and experiments, force and interactions
Cone of Sound text page kinetic/potential, engineering, structure and function, sound, energy
Trying to Blow Out a Candle text page critical thinking, observation, motion, engineering, pressure, structure and function, misconceptions, force and interactions
Exploring Friction text page mass, friction, measurement, investigations and experiments, force and interactions
Whistle Stick, part 2 text page, free, checked kinetic/potential, newton's laws, critical thinking, inertia, cycles, motion, pressure, structure and function, sound, measurement, force and interactions, energy
Blowing Up a Phone Book text page cycles, engineering, structure and function, force and interactions, energy
Squeezing Matter text page states of matter, properties, pressure, classification, measurement, force and interactions, matter
Balancing a Meter Stick text page mass, friction, force and interactions
Boomerangs text page newton's laws, critical thinking, inertia, motion, engineering, gravity, structure and function, force and interactions, energy
Twinkle, Twinkle, Distant Star text page star, refraction, planet, light, solar system
Fish in a Bucket text page mass, density, gravity, measurement, investigations and experiments
Snow Rollers text page mass, critical thinking, observation, seasons, motion, properties, weather, friction, water cycle, structure and function, force and interactions, energy
Why is a Full Moon So Bright? text page, free, checked cycles, model, reflection, light, moon
Cool Water text page senses, critical thinking, thermal energy, body covering
More Fish in a Bucket text page mass, density, gravity
Cooling Fans text page states of matter, Variables and controls, critical thinking, thermal energy, body covering, structure and function, human body, investigations and experiments, water
Comparing How Sound Moves Through Liquids and Gases text page states of matter, density, sound, energy
Creeping Carpets text page critical thinking, observation, model, motion, engineering, friction, structure and function, investigations and experiments, force and interactions
Is Gravity a Theory or a Law? text page, free gravity, hypothesis, theory, and law
Teach It Right the First Time. text page, free states of matter, critical thinking, information processing, misconceptions, matter
Yellowing Paper text page, free, checked electromagnetic spectrum, science fair, Variables and controls, critical thinking, observation, light, investigations and experiments, physical-chemical change, energy
Dancing Raisins text page mass, solution, states of matter, observation, density, structure and function, water, force and interactions
Seeing Dark Lines text page electromagnetic spectrum, light, waves
Newton's Laws text page mass, newton's laws, critical thinking, inertia, motion, measurement, force and interactions, energy
What is a Higgs boson, and why should I care? text page, blog, free, checked mass, atoms, critical thinking, model, information processing, misconceptions, hypothesis, theory, and law, matter
Magnetizing and Demagnetizing a Paperclip text page critical thinking, engineering, magnetism, structure and function

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