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Wax and Wood, part 2 video, checked polar/nonpolar, surface tension, Variables and controls, critical thinking, observation, properties, density, engineering, attract/repel, investigations and experiments, water
Igneous Rocks and Bubbles video, free, learnalong, Updated solution, states of matter, critical thinking, volcanoes, model, rocks
Microscopes: Growing Crystals video, free, learnalong, Updated refraction, light, microscope, waves, classification, crystals
Making Butter video, free, ClosedCaptions, Updated polar/nonpolar, solution, surface tension, digestive system, mammals, human body, mixture, water
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
Water Wall text page, free, checked surface tension, water
Teach It Right the First Time. text page, free states of matter, critical thinking, information processing, misconceptions, matter
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
Why Fry? text page senses, conduction, thermal energy, digestive system, investigations and experiments, physical-chemical change
Broccoli Science text page cells, Variables and controls, acid-base, plant parts, reaction, plants, investigations and experiments
A Cool Change text page solution, reaction, thermal energy, measurement, investigations and experiments, physical-chemical change, energy
Butter Science text page polar/nonpolar, states of matter, observation, properties, density, investigations and experiments, mixture
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

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