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Unit Experiment CI
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acids and bases Activity Video Ask students atomic number baking soda Chapter Concepts Chapter Test chemical changes chemical energy chemical reactions circuit color compound copper density Draw Conclusions electromagnetic electrons elements ESL ACTIVITY experiment frequency galvanometer gases graph Graphic Organizer Guide the Learning Harcourt Science heat Help students focus hydrogen hypothesize IDEAS Help students identify infer Investigate Further Investigate Log kinetic energy light Link liquid litmus paper longitudinal wave magnet main idea malleability materials matter measure metal mixture molecules move neutrons nonmetals nucleus object observe Organizer for Chapter oxygen paper clips periodic table physical change physical properties poles Possible answers potential energy Process Skill Tip produce protons questions Reading Mini-Lesson record Remind students Review salt SCIENCE IDEAS Help Scientists simple investigations solid solution sound wave speed spring toy subatomic particles substance temperature thermal energy transverse wave wavelength Webliography wire Workbook write www.harcourtschool.com