Vocab
A set of interacting parts forming a complex whole.
What is a system?
Variables that are kept the same throughout an experiment
What are controlled variables?
This element is the most abundant in the universe.
What is Hydrogen?
This law states that an object in motion stays in motion unless acted on by an unbalanced force.
What is Newton's first law of motion?
The number of hydrogen atoms in a water molecule.
What is 2?
Speed in a particular direction.
What is velocity?
The units used to measure volume in a graduated cylinder
What are milliliters (mL)?
This type of potential energy is stored in food.
What is chemical potential energy?
This law explains the relationship between force, mass, and acceleration (F = ma).
What is Newton's second law of motion?
The number of phases of the moon.
What is 8?
A conclusion or educated guess based on observations or prior knowledge.
What is an inference?
The axis on a graph that usually shows the independent variable
What is the x-axis?
Diamonds are made entirely of this element.
What is Carbon?
This scientific law states that energy cannot be created or destroyed, only transferred or changed.
What is the law of conservation of energy?
A student walks 30 meters in 5 seconds. What is their speed?
What is 6 m/s?
An observation that describes the quality of something using words.
What is a qualitative observation?
A student is testing how different water temperatures affect how fast sugar dissolves. What is the independent variable?
What is water temperature?
This molecule carries genetic instructions in living things.
What is deoxyribonucleic acid (DNA)?
This scientific law states that for every action, there is an equal and opposite reaction.
What is Newton's third law of motion?
Absolute zero is the temperature at which molecular motion theoretically stops. It is equal to this temperature in Celsius.
What is -273.15 degrees Celsius?
To change from one type of energy to another.
What is an energy transformation/conversion?
A student writes, “The liquid turned blue.” Is this an observation or an inference?
What is an observation?
This organ can regenerate up to about 75% of its mass if damaged.
What is the liver?
This law states that matter cannot be created or destroyed.
What is the law of conservation of matter (or mass)?
During an experiment, a plant grows 2 cm, 5 cm, 3 cm, and 6 cm over four weeks. What is the average growth per week?
What is 4 centimeters?