Conductivity & Circuits
Soils
Organisms & Food Webs
Patterns in Nature
Water Cycle
100
Which of the following are conductors: gold, silver, wool, wood, copper, aluminum, plastic.
Gold, silver, copper, aluminum. These are all metals.
100
Which soil has the smallest particle size?
Clay.
100
Which three organisms depend on other organisms for energy?
Rabbit, mushroom, and earthworm. The daisy is a producer.
100
Will the next moon phase have more light or less light? Explain using the pattern below.
More light.
100
What is the source of thermal energy that drives the water cycle?
The Sun
200
Wires have copper on the inside but are wrapped in rubber or plastic. Use conductivity to explain why.
The inner copper wire can conduct electricity in electronics, but the rubber or plastic outside protects from electric shock because these materials are insulators.
200
Which soil is made mostly of decomposed organic matter and has the MOST nutrients?
Humus.
200
Which of these organisms is most likely a producer? Support your answer with evidence from the food web.
200
Will the next moon phase have more light or less light? Explain using the pattern above.
Less light.
200
What is the process at point B? Explain if this is the result of heating or cooling.
Condensation --> gaseous water vapor cools and condenses back into a liquid.
300
Which material was the best INSULATOR? Support your claim with evidence from the table.
Material 3 was the best insulator because it changed temperature the least (blocked the flow of thermal energy out).
300
Which of these soils is the LEAST likely to support plant life? Soils: gravel, sand, silt, loam.
Gravel because it will absorb very little water and has very few nutrients for plants to grow.
300
How many consumers in this food web get energy DIRECTLY from producers?
3. They are: minnows, insect larvae, and snails.
300
Where would the sun appear to be at 12:00pm (noon)?
Directly overhead.
300
What process is occurring at point A? Explain whether this is the result of heating or cooling.
Evaporation --> the sun's light and heat causes liquid water to evaporate into gaseous water vapor.
400
Why is the buzzer not sounding, and what must be done to this circuit to make the buzzer sound?
The circuit is incomplete. Close the switch.
400
Based on this data, which soil best supports the growth of plants on the farm? Support your answer with evidence from the table.
Soil X (silt-sand soil).
400
Describe the process of photosynthesis and how it relates to classifying an organism as a producer, consumer, or decomposer.
Photosynthesis is the process by which producers store the sun's light energy in a usable food form (glucose, a.k.a. sugar).
400
How does the sun appear to move across the sky throughout the day?
The sun rises in the east and appears to move in the sky until it sets in the west.
400
What process is modeled when the drops run down the side of the bottle?
Precipitation
500
Why is the light bulb not turning on, and what can be done to the circuit to make it turn on?
The yarn is not a conductor of electricity. Swap the yarn for a conductor made of metal.
500
Based on this data, which soil is the BEST at absorbing water? Support your answer with evidence from the picture.
Soil 3.
500
Which organisms in this food web receive energy directly from consumers who eat only producers?
3: mountain lions, coyotes, and hawks. These eat organisms that are herbivores (eat only producers).
500
Which outline represents where the shadow most likely was at 6:00 in the afternoon?
Position D.
500
Explain the entire water cycle in terms of how water changes physical state (liquid to gas or gas to liquid). You MUST use the correct vocabulary to describe each step in the process.
Answers vary.