Experiments & Data
The step-by-step process that scientists use to figure out how things work. It helps us learn about the world by making careful observations, doing experiments, and using evidence to explain what we discover.
What is the scientific method?
This organelle is a storage space in the cell. It holds water, food, or waste
What is the vacuole?
The cell membrane is ____________ _____________ meaning it lets some things in but not others.
What is selectively permeable?
This type of subatomic molecule has a positive charge and can be found in the nucleus.
What is a proton?
This type of macromolecule is made from amino acids, which are linked together in long chains. They are used to build, repair, and fuel your body
What are proteins?
A smart guess about what you think will happen in an experiment.
What is a hypothesis?
This organelle is tiny parts of the cell that build proteins
What are ribosomes?
In the simple diffusion, molecules spread out. They move from ______ concentration to ________ concentration.
high concentration to low concentration
Identify the number of protons, neutrons, and electrons in Aluminum
protons:
neutrons:
electrons:
protons: 13
neutrons: 14
electrons: 13
This substance that tastes sour, has lots of Hydrogen ions (Hᐩ) and has a PH is between 0 and 6
What is an acid?
1. What type of data is this: The frog jumped 14 in
2. What type of data is this: The flowers are red
(YOU MUST GET BOTH)
1. quantitative
2. qualitative
This organelle packages and ships proteins to other parts of the cell
What is the golgi apparatus?
In a salt-water solution, which substance is the solute and which is the solvent.
solute:
solvent:
solute: salt
solvent: water
In this type of bond, electrons are shared between atoms in order to fill the electron shells of both atoms.
What is a covalent bond?
This type of molecule copies DNA’s instructions and delivers them to the parts of the cell that make proteins. It is Single-Stranded
What is RNA?
The factor the experimenter changes in order to test a hypothesis
What is the independent variable
This organelle contains the instructions (DNA) the cell needs in order to make proteins. It is also known as the "control center"
What is the nucleus?
In facilitated diffusion, molecules spread out to less concentrated (crowded) areas with a little extra help because they can't fit through the phospholipid bilayer on their own. They pass through ________ ________.
What are protein channels?
This term refers to atoms of the same element that have different numbers of neutrons and therefore different weights
What are isotopes?
How many phosphates are in an ATP molecule?
Identify the independent, dependent, and constant variables in this experiment: Eric thinks that he will run the fastest wearing Nike shoes. In order to test his hypothesis, he runs a mile in Nike shoes. The next day, he runs a mile in New Balance shoes. The last day he runs a mile in Adidas shoes. Each day he measures how fast he ran the mile and he compares them.
Independent variable:
Dependent variable:
Constant variables:
Independent variable: type of shoes
Dependent variable: how fast he ran
Constant variables: distance he ran, same track, etc
This type of cell DOES contain a nucleus. An example of this type of cell is a plant or animal cell.
HINT: a cell with NO nucleus (bacteria) is called a PROkaryotic cell
What is a eukaryotic cell?
In this type of solution, liquid outside the cell has less solute and more water than inside the cell. Because water moves from high concentration of water to low concentration of water enters the cell & cell grows
What is hypotonic?
In the ionic bond between Magnesium and Sulfur, which element becomes positive and which becomes negative?
Magnesium:
Sulfur:
Magnesium: positive
Sulfur: negative
What is the electron configuration of Arsenic?
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p³