Measuring
Basic unit of length in the metric system.
This is the first step in the scientific method.
Observation
This element, with the symbol H, is the first element on the periodic table
Hydrogen
This is the energy of motion.
Kinetic Energy
This is the basic unit of structure and function in all living things.
Cell
Metric System
This is an educated guess or prediction that can be tested.
Hypothesis
The periodic table is arranged by increasing this property of the elements.
Atomic Number (Protons)
This type of energy is stored in food and fuel.
Chemical Energy
This organelle controls the cell’s activities and contains DNA.
Nucleus
There are this many millimeters in one centimeter.
10
These are the variables that are kept the same throughout an experiment
Control Variables (Constants)
These are the horizontal rows on the periodic table, and they represent the number of electron shells an atom has.
Periods
This type of energy is produced by vibrating particles and can travel through air, water, and solids.
Sound Energy
These organelles are responsible for making energy from food in both plant and animal cells.
Mitochondria
Convert 5 kilometers to meters.
5,000 meters
In an experiment testing how sunlight affects plant growth, what is the independent variable?
This group of elements, found in the far right column, are nonreactive and are often used in lighting and balloons.
Noble Gases
A stretched rubber band has this type of potential energy.
Elastic Potential Energy
Chloroplast
If a student records the mass of an object as 2500 milligrams, how many grams is that, and what is one real-life object with a similar mass?
What is 2.5 grams, about the mass of a paperclip?
A student tests how water temperature affects how fast sugar dissolves, but stirs one cup and not the other. What major error did they make, and how could this impact their conclusions?
What is failing to control variables
Oxygen and sulfur are in the same group on the periodic table. What does this tell you about their chemical behavior, and why?
They have similar chemical properties because they have the same number of valence electrons
On a roller coaster, you experience kinetic and potential energy. Explain where these are strongest and weakest on the track.
Kinetic Energy is highest at the bottom and lowest at the top.
Potential Energy is highest at the top and lowest at the bottom.
If a scientist looks at a cell under a microscope and sees a large central vacuole, a cell wall, and chloroplasts, what type of cell is it, and how do those features support its function?
Plant cell; the cell wall provides structure, chloroplasts carry out photosynthesis, and the large vacuole stores water and maintains pressure.