Force and Motion Unit Vocab

David is cleaning his room and notices that his books, a glass of water, and his backpack all have mass and take up space. Fill in the blank: All of these items are examples of ______.

• Matter

• Energy

• Light

• Sound

While helping Jackson with his science homework, you come across this question: Fill in the blank: ______ is a pure substance that cannot be broken down into other substances by chemical or physical means.

• Element

• Mixture

• Compound

• Solution

While helping Aria set up a science experiment, she notices that a certain tiny, negatively-charged particle moves around the outside of the nucleus of an atom. Fill in the blank: ______ is this particle.

• Electron

• Proton

• Neutron

• Positron

While visiting a science museum, Scarlett reads a display that says: "______ is a small particle in the nucleus of the atom, with no electrical charge." What particle is the display describing?

• Neutron

• Proton

• Electron

• Positron

Olivia is watching a fireworks display and notices that energy is released in the form of heat and light. Fill in the blank: The process responsible for this is ______.

• Nuclear Fusion

• Photosynthesis

• Evaporation

• Condensation

Aria is learning about atoms in her science class. Her teacher asks her: "What is the term for the number of protons in the nucleus of an atom?" Fill in the blank: ______ is the number of protons in the nucleus of an atom.

• Atomic Number

• Mass Number

• Isotope Number

• Neutron Number

Charlotte is studying the elements in her chemistry class. She learns that ______ is the average mass of all the isotopes of an element. What is she learning about?

• Atomic Mass

• Atomic Number

• Mass Number

• Molar Mass

Ava is curious about what everything around her is made of. She learns that ______ is the basic particle from which all elements are made; the smallest particle of an element that has the properties of that element. What is Ava learning about?

• Atom

• Molecule

• Proton

• Electron

Arjun is curious about what everything around him is made of. He learns in science class that ______ is the scientific theory that matter is composed of discrete units called atoms.

• Atomic Theory

• Cell Theory

• Evolution Theory

• Quantum Theory

Jackson is learning about atoms in his science class. His teacher asks: "______ are electrons that are in the highest energy level of an atom and that are involved in chemical bonding."

• Valence Electrons

• Core Electrons

• Protons

• Neutrons