Vocab
The phrase for how our bodies keep all of our levels the same, like temperature and thirst.
What is homeostasis/internal balance?
This type of data involves taking measurements.
What is quantitative data?
The property of water that allows bugs to walk across the top of the water.
What is surface tension?
What is a polymer/macromolecule?
These two particles are found in the nucleus of an atom.
What are protons and neutrons?
The phrase for having other scientists read and criticize your research.
What is peer review?
This type of data is collected when making observations, but no measurements.
What is qualitative data?
The property of water that is responsible for surface tension. The definition is when similar molecules stick to each other.
What is cohesion?
These prevent a solution from changing pH and becoming too acidic or too basic.
What is a buffer?
This particle is found in different amounts when comparing isotopes.
What are neutrons?
This is the phrase for when a scientist givess an opinion on something they have a personal connection to.
Hint: B _ _ _
What is bias?
This variable is the only one that is being changed by the scientist in the experiment.
What is the independent variable?
The property of water that causes a meniscus to form, particularly because the water molecules are magnetically attracted to the glass.
What is adhesion?
This macromolecule carries a genetic code.
Bonus: What type of macromolecule is this?
What is DNA?
Bonus: What are nucleic acids?
This type of bond has electrons transferred from one atom to another, leaving both products with a charge.
What is an ionic bond?
A hypothesis that has been tested a multitude of times and is accepted as true until proven otherwise.
What is a theory?
These are the things that are kept consistent between the experiment and the placebo.
What are the controls?
The ability of water to hold large amounts of heat before the temperature is changed.
Bonus: These bonds allow water to have this property!
What is heat capacity?
What are many hydrogen bonds?
What is the job of enzymes?
What is lowering the activation energy and/or speeding up the chemical reaction?
Bonus info: They are reusable and also catalysts!
This type of bond has atoms share electrons in order to stick together.
What is a covalent bond?
The word for when an atom or molecule has an unevenly distributed charge, leaving one area more positive and one area more negative (hint: water has this property).
What is polarity?
This is the variable that changes as a result of the independent variable; i.e. what we can take data on.
What is the dependent variable?
This is the type of bond that exists between the oxygen and two hydrogens in water.
What is a covalent bond?
We know lipids can be saturated and unsaturated. What does this mean in terms of bonds and numbers of hydrogens?
Saturated fats have all single bonds and max # of hydrogens
Unsaturated fats have double bonds and less than max # of hydrogens
On the pH scale, this has a HIGH value pH such as 12 or 13, meaning there is more OH- than H+.
What is a base?
List the 4 macromolecules.
1) carbohydrates
2) lipids
2) nucleic acids
4) proteins
THIS IS NOT A DATA QUESTION :)
What are 6 of the 8 characteristics of living things?
Bonus: 200 more points if you can get all 8.
1) maintaining internal balance
2) made up cells
3) contains universal genetic code (DNA/RNA)
4) evolution (change over time)
5) needs energy and materials to survive
6) reproduction
7) respond to the environment
8) growth and development
What is an example of something being soluble in water and an example of something insoluble in water?
Soluble: salt
Insoluble: oil/fat
1) These are the monomers of proteins.
2) True or false: Proteins are the most diverse group of macromolecules.
True
The term for atoms with the same number of protons and electrons, but different numbers of neutrons.
What is an isotope?