Gravity
Earth's Rotation
States of matter
Reactions
Endothermic and Exothermic
Combustion
100
What is mass?
What is "a measurement of how much matter an object has"
100
What is the name of this movement, where the earth moves around the sun? (Hint, it begins with the letter O )
What is an orbit
100
What are the three main states of matter?
What are solid, liquid, and gas?
100
What is a reactant?
What is the material used in a chemical reaction?
100
What is an endothermic reaction?
What is "a chemical reaction that absorbs energy from its surroundings"
100
Combustion is the word scientists use for what bright, hot thing?
What is Fire!
200
What characteristic of an object determines how much gravity will affect that object?
What is "mass"
200
This photo was taken on December 21st. Was this photo taken in the Northern or Southern Hemisphere?
Northern. Fairbanks, Alaska
200
What is the fundamental unit of matter with specific physical properties (taste, color, smell, ...)?
What is a molecule?
200
What is a chemical reaction?
What is a process in which molecules are converted to some completely different molecules?
200
True or False: "energy is produced in an endothermic reaction"
What is "False"
200
What are two of the three ingredients for a fire?
What are fuel, oxygen, and heat
300
What combination of mass (more or less) and distance (more or less) makes gravity the strongest?
What is "more mass, less distance"
300
When the moon is positioned in the center of this circle What phase is the moon in?
This is a Full Moon
(this was a tough question)
300
What is the name of the process where liquid water becomes water vapor?
What is evaporation
300
What are molecules made of?
What is an atom
300
True or False: “an exothermic reaction feels hot when you touch it”
What is "True"
300
True or False: When you cover a candle with a plate, the fire dies because you remove the fuel.
What is False. You remove the oxygen!
400
How is gravity different from magnetism?
What is "magnetism can be repulsive while gravity only attracts."
400
True or False: We have seasons on earth because the sun moves closer and further away from us throughout the year.
False! The Earth is tilted when it moves around the sun. This axial tilt is what gives the earth seasons.
400
What is a physical reaction?
What is "a process in which molecules rearrange themselves to produce a physical change"
400
True of False: "burning sugar is a physical reaction"
What is False? Sugar turns to burnt caramel (chemical reaction).
400
What can we mix with vinegar to make an endothermic reaction?
What is "baking soda"?
400
What is a name for a chemical that is used to put out a fire?
What is an Extinguisher
500
What object in our universe has the strongest gravity?
What is "a black hole"
500
This table shows how long each day is at different cities in the world on the longest and shortest days of the year. Which city is the farthest north?
St. Petersburg
500
Name a state of matter that is NOT a solid, liquid, or glass
What is a star? What is a liquid glass? What is Plasma?
500
Name two products of a chemical reaction, "Vinegar + baking soda":
What are water, carbon dioxide, and sodium acetate?
500
True or False: "burning sugar is an exothermic reaction"
What is "True"
500
Combustion is an example of this type of reaction, when the reaction speeds itself up and spreads.
What is a Chain Reaction