The observed results of an experiment that occur from changes in the test variable (independent variable) are known as
outcome variables (dependent variables)
Which boundary do volcanoes most commonly form?
Convergent boundary
A person driving a car applies the brakes. This produces friction, which stops the car. Into which type of energy is the mechanical energy of the car converted?
heat
Sexual reproduction produces offspring that are genetically _______ to the parents.
similar
The hard and brittle outer layer of the Earth including both the crust and upper part of the mantle is known as the _____.
Lithosphere
Jeff is investigating whether increasing amount of water affect the growth rate of potted bean plants. Which is the test (independent) variable?
Which event below CANNOT be explained by the movement of the lithospheric plates?
A. tornadoes
B. volcanoes
C. earthquakes
D. mountain formation
A. tornadoes
The electric pencil sharpener in Mrs. Brown's classroom gets very warm on days when many students need to sharpen their pencils.
Choose the form of energy to fill in the blank in the energy conversion diagram below.
Electrical Energy _________
Heat Energy
Mechanical Energy
An advantage of asexual reproduction is
less time (fast)
What is the step that all rocks go thorough to become magma?
melting
Cathy conducts a scientific investigation. How can she make sure her results are accurate?
repetition
What is the driving force that moves Earth's tectonic plates?
Convection of Mantle
Energy stored in the bonds that hold together the atoms and molecules of all substances is called?
chemical energy
A disadvantage of sexual reproduction is that
It requires more time and energy.
Earth's core is mostly made of ___ and ____.
iron and nickel
A scientist read about an experiment done by someone else. She does the same experiment in her lab to make sure it works. This is an example of _____.
Describe the Subduction Zone:
In a subduction zone, __A__ crust slides under __B___ crust because a denser crust is heavier and sinks.
A. Oceanic
B. Continental
State the Law of conservation of energy
Energy cannot be created or destroyed.
Sexual reproduction requires cells to undergo ___A___, whereas only ___B____ is necessary for asexual reproduction.
B: mitosis
What steps make metamorphic rocks?
High heat and pressure
Julia wants to find out which color fabric will heat up the fastest when put under a direct light.
She places pieces of red, white, and green fabrics outside in the sunlight. Then, she places pieces of black, yellow, and blue fabric inside under a bright lamp. Finally, she measures the temperature of all the fabric samples every 5 minutes.
Why is this experiment NOT valid?
More than one light source
Most tectonic plates move at rates of?
centimeters per year
List and describe 3 types of heat transfer.
Convection - flow (hot goes up)
Radiation - distance
In the living world, there is a great deal of genetic variation. The genetic information of dogs differs from the genetic information of cats. The genetic information of plants differs from the genetic information of bacteria. Your genetic information differs from your father's genetic information, and so on.
What is least likely to be a source of genetic variation among living organisms?
Sexual reproduction
What type of rocks will be formed from the following steps:
weathering erosion
deposition
compaction/cementation
sedimentary rocks