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Scientific Method
Properties of Water
Carbon Compunds.
Chemical Reactions
Enzymes
100

The variable that scientists intentionally change.

What is independent variable 

100

An uneven distribution of electrons between the oxygen and hydrogen atoms.

What is polarity?

100

A single molecule.

What is a monomer

100
A process that changes or transforms one set of chemicals into another one.
What is a chemical reaction?
100
A substance that speeds up the rate of a chemical reaction.
What is a catalyst?
200

What is the variable that we measure based on the changes in the independent variable? 

What is dependent variable
200

An attraction between molecules of the same substance.

What is cohesion?

200

Monomers and polymers used as the main source of energy for living things and structural purposes for plants.

What are carbohydrates.

200
The elements of compounds that enter into a chemical reaction.
What is reactants?
200
A protein that acts as a biological catalyst.
What is an enzme?
300

What format do we write a hypothesis?

What is "If, then" format

300

Attraction between molecules of different substances.

What is adhesion?

300
Stores energy. Also important in biological membranes.
What are Lipids?
300
The elements or compounds produced by a chemical reaction.
What is products?
300
The reactants of enzyme catalyzed reaction.
What is a substrate?
400

What is an experimental group?

What are the groups that we expose to change. 

400

The property of water that allows insects to "walk" on the surface of ponds.

What is cohesion.

400
Polymers of nucleotides used to make (RNA) and (DNA)
What is nucleic acid?
400
Energy required to start a chemical reaction.
What is activation energy?
400
A temporary structure composed of an enzyme and it's associated substrate.
What is the enzyme substrate complex?
500

What is a control group? 

What is a group we leave alone for comparison. 

500

Ice floats on water because...

What is density of liquid is more dense than solid. 

500
Formed from monomers called amino acids.
What is amino acids?
500
Chemical reactions that absorb energy will not occur without this
What is a source of energy.
500
A value above 7.5 or below 6.5 will destroy enzymes.
What is pH