Chemical Interactions Vocabulary Investigation 1 Substances 1 Chemistry
Chemical Interactions Vocabulary
Investigation #1 Substances
1. Chemistry • The study of substances and their interactions.
2. Substance • A unique form or type of matter. --- there are millions of different substances on Earth.
3. Substances • More than one substance.
4. Mixture • Two or more substances mixed together, not chemically combined. • ---- a mixture can be separated.
5. Particle • The smallest piece of any substance.
6. Chemical Reaction • The process in which substances are transformed into different (new) substances.
7. Chemical Name • A way for scientists to refer to a particular substance using words that describe what the substance is made of. • Example = Sodium Chloride
8. Chemical Formula • A way for scientists to refer to a particular substance using symbols (a type of code) that describe what the substance is made of. Example = Na. Cl
9. Properties • What can be observed about a substance such as color, smell, boiling point, melting point, texture, hardness, luster, and chemical reactivity.
10. Dissolve • To cause a solute (white powder in our case) to pass into solution (the mixture of water and the white powder). --- Dissolving is basically when a substance “hides” in another substance. Salt can dissolve in water. The water is obviously present; the salt is also identified if you were to taste the solution. The salt is “hiding” in the water.
11. Atoms • The tiny pieces that all matter – all the stuff in the world – is made of.
12. Scientific Argumentation • A process used to convince others using evidence and reasoning.
13. Claim • A proposed answer to a question about the natural world.
14. Evidence • Information about the natural world used to support or refute a claim.
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