Vocabulary that Matters
a solid that forms from liquids during a chemical reaction
What is a precipitate?
A burning candle on a cupcake is an example of
What is exothermic reaction?
When writing a lab report, always use these words.
What is "I" or "we"?
crushing an aluminum can is what kind of propery
What is a physical property?
A characteristic of a substance that can be observed without changing the substance into another substance
What is physical property?
new substances that form from chemical changes
What is a product?
mixing vinegar with baking soda creates this kind of reaction
What is endothermic?
Which element is the most plentiful or abundant?
What is hydrogen?
burnt toast is an example of
What is a chemical change?
Color, texture, density, and conductivity are this
What is physical properties?
the energy is usually released as heat in this reaction
What is exothermic reaction?
Can a chemical reaction be observed?
What is "yes"?
Which element is not plentiful and is found in coal?
What is carbon?
What is H, O, C?
A characteristic of a substance that describes its ability to CHANGE into another substance
What is a chemical property?
when energy is absorbed, it causes its surroundings to become cooler (the reaction feels cold)
What is endothermic reaction?
What is a hypothesis on a lab report?
What is a "guess"?
Where does most of the oxygen in the world come from?
What is the ocean from plankton, algae, and bacteria?
what is an odorless, tasteless, colorless gas that is a non metal
What is Oxygen?
Substances that undergo chemical change
What is a reactant?
burning wood or paper is an example of
What is a chemical change?
Chemical reactions do one of two things
What is absorb energy or release energy?
How long can a person live with no oxygen?
What is 4-6 minutes?
a solid that forms from liquids during a chemical reaction
What is a precipitate?