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Its a Small World
Getting to the Root of It
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animals Answers will vary atomic mass beach profile beaker bulb carbon chemical class period Preparation coal cobalt nitrate cobalt nitrate solution collector pipette color change comparing and contrasting Conclude and Apply convex lens crystals Data and Observations dents dissolve distilled water electrical electrodes focal length Getting Started Going Further Students greenhouse effect hydrochloric acid indicator solution Introduce Ask students Investigate isopropyl alcohol isotopes lemon juice liquid magnifying power Materials mealworm measuring metric ruler microscope milk Needed One class nonmetal Observations Table Observing and inferring oxygen gas package Performance Task Assessment period Preparation Tips pH paper pH values Plan Purpose Students plants plastic potassium nitrate Procedure properties radiation Record your observations Remind students Repeat step Rinse the pipette sample sand Skills Reinforced Observing sodium sodium hydroxide starch substances tape Task Assessment Lists temperature test tubes test-tube rack tion toothpick tornado universal indicator vinegar xylem