Part 1 Chemistry:
what products are created in chemical reactions?
Chemical reactions create products such as molecules and atoms.
Describe how atoms rearrange in a chemical reaction
Atoms begin forming and breaking bonds with other atoms and eventually become new substances.
Vocabulary:
Amplify
Definition
atoms
The tiny pieces that all matter is made up of
chemical reaction
A process in which atoms rearrange to form new substances
model
Something that helps us understand something by making it easier to see
product
An ending substance that is made during a chemical reaction
property (chemical, physical)
Something that can be observed about a substance, such as its color, smell, or boiling point.
reactant
A starting substance that is part of a chemical reaction
rearrange
To change the order or position of something.
scale
Th relative size of things
substance
Something that is made of all the same atoms or groups of atoms.
Chemistry
boiling
Liquid into gas
chemical change
A new substance is formed during a chemical reaction
chemical equation
A representation of a chemical reaction and the atoms in a substance
compound
2 or more types of atoms and it has a chemical formula
dissolving
Mixing a substance with a liquid to create a solution
element
1 type of atom and its on the periodic table of elements
freezing
Liquid to solid
heterogeneous mixture
A type of mixture in which the individual substances arent evenly mixed and you can see the different parts
homogeneous mixture
A type of mixture in which the individual substances are evenly mixed and you cant see the different parts.
mass
A measure of amount of matter in an object
matter
Something that has mass and takes up space, it makes up all objects.
melting
Solid to liquid
phase change
The changing of matter
physical change
When matter changes form but no chemical reaction takes place and no new substances are formed
thermal energy
Heat
Part 2: Experimental Design
4Q Strategy:
What materials are readily available for conducting the experiment?
How does this thing act?
How can you change the set of things materials to affect the action?
How can you measure or describe the response of it to the change?
* Identify parts of the 4Q
* Create a 4Q
* Create an EDD
Vocabulary:
Vocabulary Term
Definition
constants
Variables that we keep the same in order to run a valid experiment
dependent variable (DV)
The measured effect of the independent variable
experiment
A scientific test testing a hypothesis to see if the IV affected the DV
independent variable (IV)
Something that is hanged or manipulated in an experiment
hypothesis
The idea that is tested in an experiment, usually written as “If (IV) the (DV)”
observation
Using your senses to gather data (texture, smell, color…)
repeated trials
Exact same experiment done over again to insure accurancy
valid
How accurately an experiment measured what it intended to measure; we do experiments with only 1 IV to increase validity
variable
Factors that can vary or chage in an experiment