Mix and Flow
Cells and Systems
Mechanical Systems
Light and Optics
Water in our World
100
Name the 3 states of matter.
Solid, liquid, gas.
100
What does a plant cell have that an animal cell doesn't?
Cell wall.
100
Name the six types of simple machines.
Wheel and Axle, Pulley, Screw, Inclined Plane, Wedge, Lever
100
What is light?
A form of energy.
100
Define potable.
Safe to drink
200
What are the 5 changes of state?
Sublimation, Condensation, Vaporization, Melting, Freezing.
200
What leads your food to your stomach?
Hint: Digestive system
Esophagus
200
What is the formula for work? Specify the measurements.
Work (Jules) = force (Newtons) x distance (Meters)
200
Provide an example of phosphorescence light.
Glow-in-the-dark stickers.
200
Which wastes less water: a shower or bath?
Shower.
300
On a chart, where would you place saturated, unsaturated, and supersaturated?
300
Name the Levels of Organization (multicellular organisms).
cells, tissues, organs, organ systems, organisms
300
Provide an example of gravitational energy.
A swing.
300
Define refraction.
The bending of a ray as it passes at an angle from one medium to another in different speeds.
300
What percentage of water is saltwater? Freshwater?
97% saltwater, 3% freshwater.
400
What are the two types of pure substances? Name an example of each.
Types: Elements and compounds. Examples: water (compound), hydrogen (element)
400
Define the function of the epiglottis. What system is it located in?
In the Respiratory System, the epiglottis serves as the "gate" between your esophagus and trachea. It closes in the process of consumption, and opens when you inhale/exhale.
400
Where is the force in and out located on this diagram?
Right side, pointing down = force in
Left side, pointing up = force out
400
How do our eyes see the image through a flat mirror?
Plane mirrors work because the light rays create a virtual image behind the mirror. Light rays are emitted in all directions. The light rays bounce off of mirrors into your eye.
400
Where is the majority of Earth's freshwater located?
Glaciers and icecaps.
500
How can viscosity affect the flow rate of a substance? Provide an example.
The thickness of a substance defines the resistance to flow. Example: honey is a thick substance, resulting in its slow flow rate.
500
What are the 5 main structures in the Circulatory System?
Heart, Arteries, veins, capillaries, blood.
500
Explain the difference between potential and kinetic energy. Provide an example.
Potential energy is stored, kinetic energy is moving.
Ex: A roller coaster moving upward = potential, roller coaster moving downward = kinetic
500
Define Bioluminescence light. Provide an example.
Chemical energy in living organisms that produce light. Ex: Firefly
500
What forms can water be in?
Gas water vapor, liquid water, and solid ice cubes.