Matter
What is "matter"?
Anything that has mass and takes up space.
State the law of conservation of energy.
Law: Energy cannot be created or destroyed; it only changes form.
What is "kinetic energy"?
Give definitions and one example for kinetic energy and potential energy.
Energy of motion.
Kinetic: energy of motion (e.g., moving blood cells). Potential: stored energy.
What is an "atom"?
The basic building block of all matter in the universe.
Ms. Brandy has a "spirit animal". What is it?
A Dolphin!
What is a "product"?
The outcome of a process or the final substance made at the end of a chemical reaction.
A + B ------- AB
What does "photosynthesis" mean?
Plants using light to make sugar.
What is "potential energy"? Give an example.
A rock at the top of a hill, food in your stomach
Name the three main parts of an atom and a short label for each.
proton = +
neutron = no charge
electron = −
How many kids does Ms. Brandy have in high school?
One!
What is a reactant?
Reactants are the starting materials found on the left side of a chemical equation. The ingredients!
A + B --------AB
What is "cellular respiration"?
Choose:
A) plants making sugar B) using food to make energy for cells C) water boiling.
Correct: B
What is "thermal energy"?
A) stored chemical energy;
B) heat energy from moving molecules;
C) light.
Correct: B
What is an "atomic number"?
The number of protons in an atom.
What's Ms. Brandy's motto?
"Fight till you die!"
What is a "state change"?
A physical process where matter changes from one form (like solid, liquid, or gas) to another.
A cheetah eats a gazelle and sprints. Trace the energy flow from the gazelle's eaten plant matter to the cheetah's muscle movement, naming at least three forms of energy involved.
Plant light → chemical (sugar) → eaten by gazelle (potential/chemical stored) → cheetah digests (chemical → ATP) → muscle contraction (chemical → kinetic + thermal).
What is "thermal energy"?
Heat energy
What does a "Neutral Atom" mean?
An equal balance of charges in the nucleus.
What's Ms. Brandy's favorite dog breed?
A Golden Retriever!
What is "physical change" vs. "chemical change"?
Part A: Choose which is a physical change:
A) water freezing into ice; B) paper burning into ash.
Give one short reason why the other example is a chemical change.
A
"Burning paper makes new substances (ash and smoke), so its chemical identity changes."
Analyze this scenario: A person is on a bicycle at the top of a hill and then coasts down. Explain the energy transformations at the starting point and the ending point.
Potential energy on top of the hill. Kinitec energy as they MOVE down the hill.
According to the law of conservation of energy, what happens to energy when it is used?
It changes from one form into another form.
Define "Atomic Mass".
Total mass (weight) of one atom of an element.
Who's your favorite teacher?
Ms. Brandy!