8th Grade Science
8th Grade Science
Biology
Biology
Biology
IPC
IPC
Chemistry
Chemistry
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
The nitrogenous bases of DNA are…..
What are A, T, C, G
Adenine, thymine, cytosine, and guanine
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
This situation would cause a liquid’s viscosity to increase.
what is decrease the temperature?
100
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
100
The formula for the ideal Gas Law.
What is:
PV=nRT
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 the cell must spend energy in the form of ATP in order to let materials in and out of the cell.
What is Active transport?
200
The nitrogenous bases of RNA are….
What are G, U, A, C
Guanine, uracil, adenine, and cytosine.
200
List two types of non-renewable energy.
What is:
Coal
Natural gas
Petroleum
200
The reason helium is considered a noble gas.
What is because it has a full outer shell of electrons (full valency)?
200
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
200
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
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
List the two processes of protein synthesis.
What are transcription and translation?
300
List two types of renewable sources of energy.
What is
Solar
Geothermal
Wind
Hydropower
Biomass
300
An example of a chemical property is-
acidity
density
mass
solubility
What is (4) acidity?
300
How many moles of nitrogen monoxide (NO) are formed, if 30 grams of water (H2O) are produced?
Molar masses: NH3=17.04, O2=32.0g, NO=30.01g, H2O=18.02g
4NH3 + 5O2 -> 4NO + 6H2O
What is:
1.11 mol NO
300
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
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
Name the location in the cell where transcription occurs?
What is the nucleus?
400
These particles are very far away from each other, are easily compressed, and have high energy.
What is a gas?
400
List the 5 major groups of the periodic table.
What are:
The alkali metals
Alkaline earth metals
Transition metals
Halogens
Noble gasses
400
How many grams of potassium chloride (KCl) are produced from the decomposition of 35 grams of potassium chlorate (KClO3)?
Molar masses: KClO3=122.55g, KCl=74.55g, O2=32.0g
2KClO3 -> 2KCl + 3O2
What is:
21.29 g KCl
400
A 0.852-mol sample of a gas is at 288 K and 81.8 kPa. Calculate the volume for the gas.
Remember the gas constant (R) = 8.3145
What is:
24.93 L
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
Transcribe this gene of DNA into mRNA:
TACGCGTTACTCCGTAAAATC
What is:
AUGCGCAAUGAGGCAUUUUAG
500
Compared to the particles in a gas, the particles in a solid move ....
What is slower than the gas?
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
What mass of potassium(K) would react with excess chlorine (Cl) to produce 156 g of potassium chloride (KCl)?
Molar masses: K=39.10, Cl=35.45, KCl=74.55
2K + Cl -> 2KCl
What is:
81.8g K
500
At constant pressure and 25oC a sample of gas occupies 8.5L. At what temperature will the gas occupy 9.0 liters?
*remember to convert to Kelvin (0oC = 273 K)
What is:
315 K