The number of protons in an atom, AND the number of protons + neutrons in an atom.
What is the atomic number and the atomic mass?
100
What you start with in a reaction AND what you end up with in a reaction.
What are reactants and products?
100
Three galaxy shapes AND their descriptions.
What are spiral (with arms), elliptical (ball-shaped), and irregular (no shape)?
200
How long does it take a bee flying 80 meters/minute to travel 480 meters?
What is 6 minutes?
200
The volume of an object with a mass of 90 g and a density of 2 g/mL.
What is 180 mL?
200
The name, location, and charge of the three particles in an atom, starting with the SMALLEST.
(electron) What is a negative particle outside the nucleus?
(proton) What is a positive particle inside the nucleus?
(neutron) What is a particle with no charge inside the nucleus?
200
Definition for subscript AND coefficient.
(subscript) What is a small, low number that tells the number of atoms?
(coefficient) What is a number in front of a chemical formula that tells the number of molecules?
200
Three characteristics used to classify stars.
What are size, color/temperature, and brightness?
300
Time it takes an object to travel 18 inches at 0.5 inches/year.
What is 36 years?
300
The volume of an object with a mass of 90 g and a density of 2 g/mL.
What is 0.25 g/cm³ & floats?
300
Two characteristics of metals.
What are shiny, malleable, conduct heat and electricity, high melting points?
300
Ba + O2 → 2 BaO: Balanced or unbalanced?
What is unbalanced?
300
Units used to measure within the solar system AND between galaxies.
What is the astronomical unit and the light year?
400
Name a contact and noncontact force.
ANSWERS MAY VARY.
400
Define and give two units for volume.
What is the amount of space an object takes up, measured in mL or cm³?
400
Name AND symbol of a halogen with 74 neutrons.
What is iodine (I)?
400
2 F2 + 2 H2O → 4 HF + O2: Balanced or unbalanced?
What is balanced?
400
List the planets in the solar system AND the asteroid belt, in order starting from the sun.
What is Mercury, Venus, Earth, Mars, asteroid belt, Jupiter, Saturn, Uranus, Neptune?
500
Describe Newton's 1st Law of Notion.
What is: An object in motion tends to stay in motion, an object at rest tends to stay at rest, unless acted upon by an unbalanced force.
500
TWO ways to predict if something will sink in water, using density AND buoyancy.
What is if the density is greater than 1 g/mL, and if the object's weight is greater than the weight of the water displaced.
500
The number of neutrons in selenium-72.
What is 38?
500
The balanced form of the equation
__C6H6O3+ __O2 → __CO2+__H2O
if the coefficients are 1, 3, 6, and 6.
What is
C6H6O3+ 6O2 → 6CO2+3H2O
500
Describe what happens to low-mass and high-mass stars when they die.
(low-mass) What is become red giants and then white dwarf stars?
(high-mass) What is become red giants, then supernova, and then become neutron stars or black holes?