Scientific Method
Matter
Water
Carbon Compounds
Reactions
100
What are the 6 steps of the scientific method, in order?
What is Problem, Hypothesis, Procedure, Data, Analysis, and Conclusion
100
What are the 3 subatomic particles.
What is protons, neutrons, electrons.
100
What is the chemical formula for water?
What is H2O
100
What are the 4 organic molecules in living things?
What is proteins, lipids, carbohydrates, nucleic acids.
100
What are the products: 2H2 + O2 --> H2O
What is H2O
200
What sentence is in the hypothesis?
What is "If... Then... Because..."
200
What subatomic particles are in the nucleus?
What is protons and neutrons.
200
What kind of bonds occur between two water molecules?
What is hydrogen bonds.
200
What are the 2 types of nucleic acids?
What is DNA and RNA
200
During a chemical reaction bonds can be _________ or _________
broken or formed
300
Which variable is the thing you change on purpose?
What is the independent variable?
300
What is the charge of an electron?
What is negative.
300
What kind of bond occurs between the H and the O in a water molecule?
What is polar-covalent bond
300
What do carbohydrates do?
provide energy
300
What protein helps lower the activation energy?
What is an enzyme (catalyst is not biological: it is not a protein)
400
What are the 3 types of variables?
What is independent, dependent, and controlled
400
What kind of bond shares electrons equally?
What is non-polar covalent.
400
Define adhesion
When different molecules stick together (like capillary action in a straw).
400
what is an example of a lipid?
What is fats, oils, waxes.
400
What are the reactants in the formula 2 H2 + O2 --> H2O
What is H2 and O2
500
What do you do in the conclusion?
Say if the hypothesis was correct or incorrect and what you would do differently next time.
500
If you change the number of protons you get a ______.
What is new element.
500
What causes a water bug to be able to "walk on top of the water without sinking in?
What is cohesion- the polar bonds cause hydrogen bonding, which makes the water molecules stick together so the bug's feet can't fall through.
500
Which type of molecule is a steroid (chemical messenger)
What is a protein.
500
What does it mean if a reaction is spontaneous?
It doesn't have a high energy of activation and it is energy releasing.
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