HOFFMAN PLANETARIUM
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Changes of Matter

States or Phases

Matter usually exists in one of three states or phases: solid, liquid, or gas. The chair you are sitting on is a solid, the water you drink is liquid, and the air you breathe is a gas.
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Properties of Matter
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Learn about the properties of materials as you experiment with a variety of objects in this great science activity for kids. Discover the interesting characteristics of materials; are they flexible, waterproof, strong or transparent?

Compounds and Mixtures
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Learn how compounds and mixtures are both different and alike in this interactive activity.
Describing Matter
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Utilize the reading on Forms of Matter to answer the questions located on the form. 

States of Matter
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Learn about solids, liquids and gases as you experiment with the conditions that change them from one form to another in this fun, interactive science activity.

States of Matter II
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 Learn about the changing states of water as you experiment with different temperatures in this fun, interactive activity.

Chemical Changes
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Learn about reversible & irreversible changes by testing what happens to different substances as you experiment with them in this fun, interactive activity. Find out what substances dissolve in water and lots of other interesting chemistry related facts.

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  • HOME
    • Exoplanets
    • Insects
    • Plants
    • Zoo Time
  • Lesson Resources
    • K - 5 Physical Science (Unit 1) >
      • Kindergarten - Unit 1
      • 1st Grade - Unit 1
      • 2nd Grade - Unit 1
      • 3rd Grade - Unit 1
      • 4th Grade - Unit 1
      • 5th Grade - Unit 1
    • K - 5 Earth Science (Unit 2) >
      • Kindergarten - Unit 2
      • 1st Grade - Unit 2
      • 2nd Grade - Unit 2
      • 3rd Grade - Unit 2
      • 4th Grade - Unit 2
      • 5th Grade - Unit 2
    • K - 5 Life Science (Unit 3) >
      • 3rd Grade - Unit 3
      • 4th Grade - Unit 3
      • 5th Grade - Unit 3
    • Middle School Science Lessons >
      • Middle School Resources
    • High School Lessons >
      • Physics and Space Science
      • Earth Science
      • Ecology and Biology
  • Shows/Tickets
    • Girl Scout and Boy Scout Programs