This metric base unit is used to measure distance and length.
What is a meter
100
A melting candy bar is the best example of this kind of change in matter.
What is a physical change?
100
In an energy pyramid, this kind of organism has the least energy available to it:
What is a third-order consumer?
100
During this phase the Moon receives sunlight only on the side facing away from Earth.
What is "New Moon."
100
What gas is produced as a result of photosynthesis?
What is oxygen
200
A student grows 7 lima seeds at the following temperatures: 10, 15, 20 and 25 C. The temperatures represent the _____ in a controlled experiment.
What is the independent variable?
200
During a fireworks show, a family sees the spray of sparkles from an exploding firework high in the sky and, a moment later, hears the pop. This phenomenon is best explained by ___.
What is "Sound travels slower than light."
200
Arrange the following organisms into a food chain:
hawk, grasshopper, snake, clover
What is
Clover, Grasshopper, Snake, Hawk
200
One side of each thin blade of a radiometer is painted black, and the other side is painted white. The Sun's rays strike the blades, and the device begins to spin. The device is powered by this kind of energy:
What is radiant or solar?
200
The various organized structures present in the cytoplasm are called organelles. What organelle is responsible for the release of energy to support cell activities?
What is the mitochondrion?
300
"Organisms in Wetlands" printed by the Chesapeake Bay Foundation, would likely best answer what question?
What kind of animals live in a wetland?
300
The Earth is warmed by solar energy. This process explains how this energy transferred from the sun to the Earth?
What is radiation?
300
The island of Guam had no native snake species until the brown tree snake was introduced. This is the effect this egg-eating snake have on the native bird populations?
What is "Bird Populations decreased?"
300
This is one advantage of using a hydroelectric power plant
What is "it is renewable."
300
This is a part that typical plant cells have that typical animal cells do not?
What is a cell wall?
400
A graduated cylinder is read correctly by observing the bottom of this feature.
What is the meniscus.
400
These are the two compounds that are the products of combustion:
What are carbon dioxide and water
400
The loss part of a food chain would have the least effect on the water cycle in an ecosystem: Proucers or Consumers?
What is Consumers
400
There are harvesting regulations for many fish species that limit the number and size of the fish that may be kept. This is the most likely reason these limits have been placed on harvesting these fish?
What is "To keep a healthy population of adult fish"
500
A student suspects that there is a relationship between the amount of sunny weather in a given state and the amount of solar energy used by its inhabitants. In order to find out if this idea is correct, the student will need which information for each state?
What is "The number of sunny days per year and the amount of solar power used per year"
500
"Vinegar bubbles when baking soda is added." is an observation that might be made during this kind of change:
What is a chemical change
500
A hermit crab that lives in an abandoned whelk shell is an example of this kind of symbiosis.
What is commensalism
500
Clouds are formed when millions of drops of water become suspended in the air. This step of the water cycle describes how clouds are formed: