| Become a member of Enchanted Learning. Site subscriptions last 12 months. Click here for more information on site membership. As low as $20.00/year (directly by Credit Card) |
||||
| Site members have access to the entire website with print-friendly pages and no ads. | ||||
•Physical mixture - in which the molecules remain unchanged but are moved around to form mixtures, solutions, and colloids (for example, water and salt form salty water and molecules of nitrogen, oxygen and other gases form air).
•Chemical reactions - which rearrange the atoms to form different molecules (for example, molecules of gaseous hydrogen can be combined with molecules of gaseous oxygen to form liquid water).
•Nuclear reactions - which rearrange and possibly transform subatomic particles to create different atoms (for example, fusion in the Sun's core, in which hydrogen nuclei are crushed together to form helium nuclei).
All matter is composed of
molecules. Molecules are composed of atoms, which consist of a nucleus surrounded by a cloud of electrons. The nucleus is composed of protons and
neutrons, which are themselves composed of quarks.
Each of the above-mentioned methods of changing matter involves rearranging constituents of the substances - from rearranging molecules, to rearranging atoms, to rearranging subatomic particles.
|
Overview of Site What's New Enchanted Learning Home Monthly Activity Calendar Books to Print Site Index K-3 Crafts K-3 Themes Little Explorers Picture dictionary PreK/K Activities Rebus Rhymes Stories Writing Cloze Activities Essay Topics Newspaper Writing Activities Parts of Speech Fiction The Test of Time |
Biology Animal Printouts Biology Label Printouts Biomes Birds Butterflies Dinosaurs Food Chain Human Anatomy Mammals Plants Rainforests Sharks Whales Physical Sciences Astronomy The Earth Geology Hurricane Landforms Oceans Tsunami Volcano |
Languages Dutch French German Italian Japanese (Romaji) Portuguese Spanish Swedish Geography/History Explorers Flags Geography Inventors US History Other Topics Art and Artists Calendars Crafts Graphic Organizers Label Me! Printouts Math Music |
Click to read our Privacy Policy
| Search the Enchanted Learning website for: |