7TH GRADE SCIENCE
8TH GRADE SCIENCE
8TH GRADE SCIENCE
BIOLOGY
BIOLOGY
IPC
Chemistry
Environmental Science
100
An animal that eats other animals
What is a consumer/heterotroph?
100
Explain the theory of continental drift.
What is when all the continents were connected (Pangea)?
100
This changes the shape and size of a rock without changing its composition.
What is weathering?
100
The cell cycle stage in which the cytoplasm splits into two complete daughter cells.
What is cytokinesis?
100
In this type of cell transport materials get moved across the cell membrane due to a concentration gradient (moves from high to low).
What is passive transport?
100
True or False
All types of energy (renewable and non-renewable) is used in different ways to do the same thing, to turn a turbine.
What is true?
100
The formula for the ideal Gas Law.
What is:
PV=nRT
100
Define population
What is a group of individuals of the same species living and interbreeding within a given area?
200
An organism that creates its own energy?
What is a producer/autotroph?
200
The three types of tectonic plate boundaries are....
What are Convergent, Divergent, Transform?
200
The process by which rocks, sediments, or bits of soil are carried away.
What is erosion?
200
The step in Interphase in which DNA is duplicated/ copied.
What is Synthesis or S-phase.
200
In this type of cell transport materials get moved across the cell membrane due to a concentration gradient (moves from high to low).
What is passive transport?
200
List two types of non-renewable energy.
What is:
Coal
Natural gas
Petroleum
200
The theoretical yield of FeCl2 is 20 grams. What is the percent yield of FeCl2 if my actual yield is 11 grams?
What is:
55% FeCl2
200
The three major biomes of the United States.
What are grassland, desert, and temperate deciduous forest?
300
The main difference between a food chain and food web.
What is, a food web will contain many food chains within it, it is a larger view of the consumers and producers within that ecosystem, while a food chain is very specific view of a small aspect of the producer/consumer relationship in that ecosystem.
300
The type of plate boundary that moves away from each other usually creating rifts or rift valleys.
What is a divergent boundary?
300
A type of map that shows specific features of landforms including steepness or flatness of the land’s surface using contour lines.
What is a topographic map?
300
The longest phase of the cell cycle.
What is interphase?
300
This type of passive transport only pertains to the movement of water.
What is Osmosis?
300
This situation would cause a liquid’s viscosity to increase.
what is decrease the temperature?
300
A tank contains three gases: oxygen, helium, and nitrogen. If the partial pressures of the three gases in the tank are 25 atm of O2, 10 atm of N2, 35 atm of He, what is the total pressure inside of the tank?
What is:
70 atm
300
List five types of biomes.
What are:
Tropical rainforest
Temperate forest
Desert
Tundra
Taiga/boreal forest
Grassland
Savanna
400
Internal structures of organisms have adaptations that enable organisms to be successful in their environment. Blubber in a penguin is one example of this. What function does the blubber perform for the penguin?
make the penguin look bigger to scare off predators
add bulk to the penguin, enabling it to balance on the ice
protect the penguin from freezing water temperature
allows more friction between the penguin and ice
What is answer choice 3. Protect the penguin from freezing water temperature.
400
The type of plate boundary that slide past each other and usually creates faults and earthquakes.
What is a transform boundary?
400
The accumulation or laying down of matter by a natural process, as in the laying down of sediment in streams or rivers.
What is deposition?
400
List all the phases of mitosis in order.
Prophase
Metaphase
Anaphase
Telophase
400
What is answer choice:
D.) ATP
400
List the 5 major groups of the periodic table.
What are:
The alkali metals
Alkaline earth metals
Transition metals
Halogens
Noble gasses
400
A gas with a volume of 130ml and a pressure of 3.0 atm is compressed to 50.0 ml. What is the new pressure?
What is:
7.8 atm
400
This type of biome has the largest diversity of organisms per square mile.
What is tropical rainforest?
500
What type of organism would you see at the base of the pyramid?
Any kind of plant/ producer.
500
The type of plate boundary that moves toward each other and subduction occurs usually causing mountains and or volcanos.
What is a convergent boundary?
500
When reading a topographic map if contour lines are close together, this means…..
What is the landform is steep?
500
What is answer choice:
A.) A tumor
500
what is answer choice:
A.) Active transport, because energy is being used to move molecules against the concentration gradient.
500
A substance has molecules that are loosely bound, allowing them to flow freely around each other. The substance will take the shape of its container, this substance must be a
What is a liquid?
500
How many moles of Oxygen (O2) gas are needed to react with 25 moles of ammonia (NH3)?
Molar masses: NH3 = 17.04g, O2=32.0g, NO=30.01g H2O=18.02g
4NH3 +5O2 -> 4NO + 6H2O
What is:
31.25 mol O2
500
The type of biome that is found in Alaska
What is tundra?