Unit 1 and 2
Changes in matter
Changes in matter
Unit 3 and 4
Force and motion
Force and motion
Unit 5 and 7
Thermal Energy and plate tectonics
Thermal Energy and plate tectonics
Unit 6 and 8
solar systems
solar systems
Unit 9
matter and energy in ecosystems
matter and energy in ecosystems
100
What is pure substance made of only one type of atom, represented by a chemical symbol?
element
100
What is the average speed of object 1 and object 2?
Object 1 - 20 m/s
Object 2 - 5 m/s
100
A student says, “Heat moves from a cooler object to a warmer object until both objects reach the same temperature.”
Is the student correct? Explain why or why not.
No. Heat moves from the warmer object to the cooler object until both reach the same temperature (thermal equilibrium).
100
Why do planets travel in a curved (elliptical) path around the Sun instead of moving in a straight line?
Gravity
100
What is the original source of energy for almost all ecosystems?
Sun
200
What is pure substance made of two or more elements, represented by a chemical formula?
compound
200
Velocity is speed and ______________.
direction
200
Three different situations are happening:
1. A spoon gets hot in a cup of soup
2. Warm air rises and cool air sinks in a room
3. You feel heat from the Sun on your skin
Identify the type of heat transfer in each situation.
Spoon in soup → Conduction
Air moving → Convection
Heat from the Sun → Radiation
200
Name the planets that are small, rocky, and found closest to the Sun.
Terrestrial planets or inner planets
200
Name the organisms that make their own food using sunlight.
producers
300
Is boiling water a physical or chemical change?
physical change
300
Distance plus direction is ______________.
Displacement
300
When two oceanic plates move in these directions, we get what kind of landforms?
Ocean basins/mid-ocean ridge
300
What is the name of the region that is beyond Neptune and contains icy objects that can become short-period comets. Hint: It is NOT the Oort Cloud
Kuiper Belt
300
A rabbit that eats grass belongs to what trophic level?
primary consumer
400
How many carbon atoms, hydrogen atoms, and bromine atoms are present in the compound below?
CH3CH2Br
2 carbon
5 hydrogen
1 bromine
400
Two objects are shown on the same distance vs. time graph. One line is steeper than the other. Which object is moving faster and why?
The object with the steeper line is moving faster because it covers more distance in less time
400
What geological event occurs at this plate boundary?
continental - continental
Mountains
400
What are the objects that are made of ice and dust and can form tails when near the Sun?
Comets
400
What is the percentage of energy that is passed to the next trophic level?
10%
500
Sugar and water were added to create a sugar water solution. What is the solute and solvent in this solution?
solute - sugar
solvent - water
500
Create a story to go with this graph
Responses can vary
500
This is a rift valley which is formed at what kind of boundary?
Divergent boundary
500
Describe the size, composition, and location of the Jovian Planets
larger planets
gas giants
further from the Sun
500
Explain why there are fewer organisms at higher trophic levels
Energy decreases at each level (only 10% transfers), there is less energy available to support many organisms