Measuring Mania
Alive or Just Vibes
Science for Dummies
BIG MOLECULE
Vegetable, Mineral,
Chemical
Chemical
Is water wet?
100
When testing the hypothesis "if we change the shape of the paper, the paper will fall to the ground faster (have a shorter fall time)", what factor do we measure based on the factor that we manipulated/changed?
Dependent variable OR the time it takes for the paper to fall
100
Ms. R likes to keep her classroom super cold! One of her students starts to shiver. This is their body's way of trying to warm up to maintain...
Internal balance/homeostasis
100
True OR False: Scientific theories are testable explanations for natural phenomena based on evidence.
TRUE
100
What category of macromolecules is the most diverse?
Proteins!!!!!!!!!!!
100
During a chemical reaction, what ALWAYS happens to the chemical bonds as the reaction proceeds?
Chemical bonds break and form!
100
What is the chemical formula for water?
H2O !!
Remember hydrogen and oxygen have different properties than water!
200
Water is a clear, colorless liquid. What kind of data does this observation represent?
Qualitative Data
200
All living things have _______ which carries the genetic code.
DNA
200
True or False: Science is a list of beliefs and facts that are constant and unchanging.
FALSE
200
This polymer is... typically not dissolvable in water, can be saturated or unsaturated, and contain long fatty acid tails.
Given the above characteristics, what macromolecule is being described?
Lipids!
200
We know that enzymes speed up biological reactions. What do they do to the activation energy?
Enzymes decrease the activation energy of the reaction
200
When Ms. R was little and got in trouble her mom washed her mouth out with soap. The soap tastes bitter, bubbles, and has pH of 9 to 10.
Does this indicate that soap is an acid, base, or neutral?
Base! The solution is basic, meaning it has fewer hydrogen (H+) ions.
300
Mrs. Bono notices that her classroom lights won't turn on. They worked fine yesterday, and she knows there was a power outage last night, which has previously caused a similar problem. She concludes that the breaker was tripped. What has Mrs. B just done?
made an INFERENCE based on past experience and observations
300
ALL living things are made of _______
CELLLS
300
Ms. Rutherford thinks that her class is the best biology class in the whole school. However, Ms. R knows that in order to be a good scientist she must be open to changing her mind if the ________ shows otherwise.
Evidence
300
Are monomers made of polymers?
OR Are polymers made of monomers?
Polymers are made of monomers
REMEMBER: Mono- means ONE and Poly- means MULTIPLE
300
Table salt (NaCl) have super strong ionic bonds between the positively charged Na ion and the negatively charged Cl ion. These charge differences result from what?
The transfer or gain/loss of electrons!!
300
In water molecules, the hydrogen and oxygen atoms share electrons. What kind of bonds are these?
Covalent!
400
Mr. Divetta stayed up late writing an assignment for his biology class. He shared it with Mr. Speck who found some mistakes in the assignment. This is an example of what?
Peer Review
400
When an insect crawls onto a venus flytrap, the plant will immediately close around the insect. This is the flytrap responding to ____, signals that come from the environment.
Stimuli OR Environmental Changes
400
PICK 1: Which of the following could NOT be tested using the scientific method?
1. Does adding salt make water boil at higher temperatures?
2. Do plants grow taller when watered every day versus every 3 days?
3. Why are we here on Earth?
4. How is Earth different from other planets?
NUMBER 3! This is not testable by the scientific process and is a values/beliefs based question.
400
Which part of the amino acid shown below differs between the 20 naturally occurring amino acids?
Purple Box/R-group
REMEMBER: R stands for "rest of the molecule"
400
The nucleus of the atom is made up of what 2 particles?
Protons and Neutrons!
400
When water was dropped onto the penny, the water molecules stuck together and created a sort of dome over the top of the coin. What property of water is this an example of?
Surface tension!!!!!!
500
Mr. Krabs is once again testing his secret formula. He has two groups of workers. Group A is given the real secret formula before they start making their burgers, while Group B is given a fake version of the secret formula that is just water. In this experiment, what is group B?
The Control Group!
500
Living things can/will change over time throughout multiple generations. What is this called?
Evolution
500
Which word describes a tentative, testable explanation scientists propose before conducting an experiment?
Hypothesis
500
DNA, a macromolecule and polymer, stores and transmits hereditary or genetic information. What is the monomer of DNA?
Nucleic acids!
500
Catalase, the enzyme from the potato lab, is a catalyst. How does it affect the chemical reaction?
Speeds up OR decreased activation energy OR helps split hydrogen peroxide into water and oxygen gas
500
Trees have narrow tubes in their trunks that allow for water to move from the roots to the tops of the trees. What property of water allows the molecules to move against gravity?
Capillary action!! OR adhesion and cohesion working together
600
Mr. Divetta wanted to know the average height of his soccer players. Each kid was measured in cm. What kind of data is he gathering?
Quantitative!
REMEMBER: Quantitate is quantity and Qualitative is quality
600
Starfish, which are living organisms, can break off one of their legs which can grow into a new starfish that is considered the offspring or child of the original starfish. What characteristic of life is this?
Reproduction!
600
During lab time, Ms. Rutherford walks around the class watching her students closely and taking careful notes about their behavior. What step of the scientific method was Ms. R doing?
Making observations!
600
Amino acids are a monomer. When they bond together, what macromolecule or polymer do they form?
Proteins!
600
The enzyme-substrate complex is specific. We saw in the potato lab that when there was no hydrogen peroxide (substrate) there was no reaction. What is the best description of how it works?
Lock-and-key or some equivalent explanation
600
What property of water allows hydrogen bonds to form among water molecules, leading water to be considered "sticky"?
Cohesion OR Polarity OR slightly negative oxygen atom and slightly positive hydrogen atoms