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Sorting Salt and Pepper, How Many Ways? text page, free mass, solution, static electricity, Variables and controls, critical thinking, observation, motion, properties, density, engineering, friction, electricity, structure and function, attract/repel, investigations and experiments, mixture, force and interactions
Crystal Angles text page, checked minerals, measurement, crystals
The Science of Campfires text page mass, Variables and controls, critical thinking, observation, reaction, combustion, properties, thermal energy, investigations and experiments
Comparing How Sound Moves Through Liquids and Gases text page states of matter, density, sound, energy
Can Water Float? text page Variables and controls, critical thinking, observation, thermal energy, density, expand/contract, investigations and experiments, water
Potato Water text page cells, osmosis, physical-chemical change
Wood Ash text page acid-base, reaction, physical-chemical change
States of Matter text page, free states of matter, properties, matter
Capillary Filter text page surface tension, model, engineering, water cycle, gravity, structure and function, rocks, mixture, water
Peroxide Bubbles text page reaction, combustion, element
Soap Making text page reaction, compound, physical-chemical change
Cartesian Raisins text page solution, states of matter, Variables and controls, critical thinking, properties, density, engineering, information processing, pressure, investigations and experiments, mixture
Cleaning the Silver text page reaction, compound, physical-chemical change
Acid Hunt text page senses, acid-base, properties
Cat Lapping text page invertebrates, surface tension, adaptation, observation, model, digestive system, mammals, structure and function, misconceptions, anatomy, water
The Science of Spit text page reaction, digestive system, physical-chemical change
Changing Pressure text page states of matter, thermal energy, pressure, expand/contract
A Hot Change text page reaction, thermal energy, physical-chemical change, energy
Clear Ice text page solution, states of matter, water
What is Smoke? text page, free, checked reaction, combustion, compound, mixture, physical-chemical change
Coffee Rings text page solution, surface tension, critical thinking, observation, water
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
Dancing Raisins text page mass, solution, states of matter, observation, density, structure and function, water, force and interactions
Testing the Smoke Detector text page combustion, safety
Dew on the Window text page, free states of matter, thermal energy, water
Potato Polarity text page reaction, electricity, element, compound, water
Simple Electrolysis text page electricity, element, compound, water
Sticky Water text page surface tension, water
Growing Crystals from Solution text page, checked solution, states of matter, minerals, crystals, physical-chemical change
A Clean Trick text page surface tension, water, force and interactions

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