Chemistry
Physics
Earth Science
Ecosystems
Graphs
100
Which of the following is a compound?
A. Cl
B. Ag
C. NaOH
D. Sc
C. NaOH
100
What type of change occurs when an egg is scrambled?
A. Physical change only
B. Chemical change only
C. Both chemical and physical change
D. Neither chemical nor physical change
C. Both chemical and physical change
100
What causes ocean basins to form at tectonic plate boundaries?
<---------Ocean--------->
A. Plate collision
B. Plate separation
C. Erosion
D. Deposition
B. Plate separation
100
In hydra budding, how does the offspring compare to the parent?
Hydra reproduce asexually through budding. a processing which a bud breaks off an adult hydra and floats away.
A. Has different genes
B. Is genetically identical
C. Has half the genes
D. Has mixed genes
B. Is genetically identical
100
Explain Distance vs Time graph what is happening when a graph looks like the following:
-----------------------------------
Not moving, Distance stays the same, speed is 0
200
What is the best definition of an element?
A. A substance made of two different types of atoms
B. A substance made of one type of atom only
C. A mixture of different compounds
D. A solution of different substances
B. A substance made of one type of atom only
200
In a salt water solution, what is the solvent?
A. Salt
B. Water
C. The mixture
D. The container
B. Water
200
What best describes crust formation at divergent boundaries?
A. Crust is destroyed
B. Crust is created
C. Crust remains unchanged
D. Crust melts completely
B. Crust is created
200
How much energy is transferred through each trophic level?
A. 90%
B.75%
C.10%
D. 1%
C. 10%
200
Explain what is happening when a graph looks like
/
Moving away from start, Increasing distance, constant speed.
300
In the chemical formula C₂H₃O₂, how many total atoms are present?
A. 5
B. 3
C. 7
D. 4
C. 7
300
On a frictionless surface, what happens to a moving ball when pushing stops?
A. It stops immediately
B. It continues at constant speed
C. It speeds up
D. It changes direction
B. It continues at constant speed
300
What is a positive impact humans have on the ocean?
Artificial Reefs
300
Which best describes watershed contamination?
A. Through evaporation
B. Through surface runoff
C. Through precipitation
D. Through wind
B. Through surface runoff
300
What will a distance/time graph look like if an object travels at a constant speed away from start?
400
Which formula is correct?
Sodium 1 Hydrogen 1
Nitrogen 3 Oxygen 3
A. NaHN₃O₃
B. MgN₃O₃
C. NaCl
D. FeMO₃
A. NaHN₃O₃
400
What are vectors?
arrows that illustrate the direction and magnitude of a force
400
What causes harmful algae blooms in lakes?
A. Agricultural runoff
B. Oil spills
C. Overfishing
D. Natural causes
A. Agricultural runoff
400
What is the main cause of water pollution in lakes far from cities?
A. Direct dumping
B. Runoff
C. Rain
D. Evaporation
B. Runoff
400
How long did it take this object to travel 10m?
20 s
500
Which represents a chemical change?
A. Ice melting
B. Wood burning
C. Sugar dissolving
D. Water evaporating
B. Wood burning
500
What is net force?
A. The largest force only
B. The sum of all forces in all directions
C. The smallest force only
D. The average of all forces
B. The sum of all forces in all directions
500
What is Subduction Zone, and how does the plate boundaries look like.
When the plate are going colliding and one plate goes underneath another plate
500
What happens to salt's solubility as temperature increases?
A. Decreases steadily
B. Remains constant
C. Increases steadily
D. Fluctuates randomly
C. Increases steadily
500
Which car is going the fastest?
Car A