Question:
What atoms combine to make up a molecule of water? 1. 1 hydrogen, 1 oxygen 2.
OPTIONS:
- hydrogen,
- oxygen
- 2 hydrogen, 1 oxygen
- 2 hydrogen, 2 oxygen
Answer:
2 hydrogen, 1 oxygen
Question:
Which list contains only things that are part of our solar system?
OPTIONS:
- planets, moons, comets
- galaxies, quasars, asteroids
- black holes, novas, stars
- clusters, asteroids, meteors
Answer:
planets, moons, comets
Question:
Sodium chloride, commonly called "table salt," is made up of sodium and chlorine that have been combined chemically. Which term best describes sodium chloride?
OPTIONS:
- Acid
- Atom
- Element
- Compound
Answer:
Compound
Question:
Which of the following describes an object that must have a net negative charge?
OPTIONS:
- It contains more molecules than atoms.
- It contains more electrons than protons.
- It is carrying an electric current.
- It is made of metal.
Answer:
It contains more electrons than protons.