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Simple Electrolysis text page electricity, element, compound, water
Growing Crystals from Solution text page, checked solution, states of matter, minerals, crystals, physical-chemical change
Sticky Water text page surface tension, water
A Clean Trick text page surface tension, water, force and interactions
Making Egg Geodes text page, learnalong, checked solution, minerals, rocks, crystals, physical-chemical change
Melting Icebergs text page critical thinking, climate, model, density, water cycle, expand/contract, misconceptions, water
OJ Ice Crystals text page solution, states of matter, Variables and controls, investigations and experiments, water
Is it Safe to Heat Water in a Microwave Oven? text page solution, states of matter, critical thinking, model, safety, water
A Cool Experiment text page states of matter, thermal energy, physical-chemical change, water, energy
Egg in a Bottle text page critical thinking, reaction, combustion, thermal energy, engineering, pressure, expand/contract, misconceptions, force and interactions
Viscosity text page Variables and controls, measurement, compound, investigations and experiments, mixture, water
Adding to a Full Cup text page surface tension, properties, misconceptions, measurement, investigations and experiments, water, matter
Understanding "Chemical Formula" text page, learnalong, checked chemical formula, minerals, rocks
What Really Happens With Evaporation? text page, free, checked kinetic/potential, states of matter, atoms, critical thinking, thermal energy, weather, water cycle, misconceptions, physical-chemical change, water
Why We Use Soap text page polar/nonpolar, surface tension, investigations and experiments, mixture, water
Air has Weight text page mass, states of matter, critical thinking, properties, density, pressure, gravity, expand/contract, misconceptions, measurement, force and interactions
Bad Chocolate? text page senses, states of matter, Variables and controls, critical thinking, observation, properties, digestive system, investigations and experiments, mixture, crystals, physical-chemical change
Black and White Smoke text page Variables and controls, reaction, combustion, investigations and experiments
Feeling the Pressure text page senses, critical thinking, pressure, gravity, measurement, water, force and interactions
Changing How We Look at Changing text page, free solution, states of matter, critical thinking, reaction, misconceptions, classification, physical-chemical change
Squeezing Matter text page states of matter, properties, pressure, classification, measurement, force and interactions, matter
Understanding "Internal Crystalline Structure" text page, learnalong, checked minerals, rocks, crystals
States of Matter text page states of matter, observation, cycles, misconceptions, physical-chemical change
Science of Papal Smoke Colors text page, free Variables and controls, observation, reaction, combustion, investigations and experiments, physical-chemical change
The Solution to Crystals text page solution, thermal energy, minerals, physical-chemical change
Yellowing Paper text page, free, checked electromagnetic spectrum, science fair, Variables and controls, critical thinking, observation, light, investigations and experiments, physical-chemical change, energy
Teach It Right the First Time. text page, free states of matter, critical thinking, information processing, misconceptions, matter
Water Wall text page, free, checked surface tension, water
Breathing Hot and Cold text page states of matter, Variables and controls, critical thinking, observation, thermal energy, engineering, respiratory system, information processing, structure and function, misconceptions, human body, investigations and experiments, water, force and interactions
Broccoli Science text page cells, Variables and controls, acid-base, plant parts, reaction, plants, investigations and experiments

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