How many atoms are in a glucose molecule ( C6H12O6 )?
24
What are the reactants in a chemical reaction?
The chemicals you start with
A friend grabs a piece of firewood and burns their hand. What heat transfer method is being used?
A friend grabs a piece of firewood and burns their hand. What heat transfer method is being used?
Draw an object with elastic potential energy.
Anything that stretches then returns to its original shape. (rubber band, bow and arrow, etc.)
A jedi uses their lightsaber to cut through a battle droid that weighed 80 kg. How much would the broken droid weigh if you gathered all of the pieces?
Include units
80 kg
How many molecules of MgCl2 are present in 12 MgCl2?
12
In a chemical reaction mixing 22 grams of baking soda and 13 grams of vinegar, what is the total mass of the products?
35 grams
Radiation
Draw a model of methane molecule (CH4)
Include a Key to show what element the atoms are.
1 carbon and 4 hydrogen atoms.
Boba Fett the Bounty hunter tapped Han Solo in carbonite using this phase change.
Freezing
How many many atoms are present in 7 K2Cr2O7 ?
63
7* (2 K + 2 Cr + 7 O)
Possible answers:
Energy change (temperature change, light, sound)
Color change
Formation of a gas
Formation of a solid (precipitate)
New smell
Convection currents form in liquids and gasses when heated because of __________ changes?
Density
Draw a helium atom.
Include a key to identify subatomic particles and show them in the right locations.
2 protons
2 electrons
2 neutrons
Protons and neutrons in the center
Electrons on the outside
2 pod racers travel at the same speed, but the orange one has more more kinetic energy. Why?
The orange one has more mass
What type of element would a atom be if it had 7 protons and 8 neutrons?
Nitrogen because it has 7 protons
What is the only way to know a chemical reaction has occurred?
A new substance is formed.
What do you call a material that slows heat exchange?
Insulator
Draw a model showing the reactants and products of hydrogen gas burning in Oxygen. Show the correct number of atoms in molecules and correct number of molecules.
2 H2 + O2 yields 2 H2O
2 hydrogen pair and 1 oxygen pair
yields 2 water molecules.
On the frozen planet Hoth, Han Solo places Luke Skywalker inside a dead animal to keep him safe from freezing to death. What type of material is the animal's body acting as to prevent Luke from freezing?
Insulator
How many protons would be in an Ethane molecule?
Ethane: (C2H6)
18 protons
6 from each Carbon
1 from each Hydrogen
Which elements are unbalanced in this equation below?
2 Na + H2O Yields H2 + 2 NaOH
Hydrogen
Oxygen
Why do insulated water bottles (like a Hydroflask) still lose heat? They do not have air in between the layers of metal.
Heat can still be lost to radiation through the empty space where there is no air.
Draw a picture showing why gasses are poor conductors of heat. Label key features of your graph.
Lightsabers are an iconic symbol of jedi and their power require this synthetic and natural resource to function.
Kyber crystals