Energy
The bouncing back of light when it strikes a surface is called _________________.
reflection
What happens when you use hot water instead of cold water to dissolve sugar?
The sugar dissolves more quickly.
Compare the shapes of an animal cell and a plant cell.
Animal cells are round while plant cells are rectangular.
What percentage of the Earth is covered by oceans?
about 70%
What is likely to happen at a transform plate boundary?
an earthquake
What type of waves are sound waves?
compression waves
Which phase of matter has the most energy?
gas
Where are chloroplasts found?
in plant cells
Ice covers much of which ocean?
Arctic Ocean
In what type of rock would you most likely find a fossil?
sedimentary
Which of these objects is opaque?
a frosted glass window, glass of water, wax paper, or block of wood
block of wood
The basic building blocks of matter on Earth are called _________.
atoms
Rosebushes have sharp thorns on them to help keep animals from eating them. This helps the plant to survive. The thorns are an _________________.
adaptation
The deepest point in most of Earth's oceans is at ________________.
a trench
Which two types of rock can form deep inside Earth?
igneous and metamorphic
The number of waves produced each second is the wave's __________.
frequency
When two elements bond together, they form _____________.
a compound
Polar bears live in the cold environment. Which adaptation help protect them from the cold?
sharp teeth, white coloring, good eyesight, or thick fur
thick fur
Which of these does NOT cause currents in the ocean?
differences in salinity, differences in oxygen, differences in density, differences in temperature
differences in oxygen
Write the layers of the Earth in order from the outside layer to the inside of the Earth.
crust, mantle, outer core, inner core
The technology that ships use to find the depth of the ocean is ____________.
sonar
How is a mixture different from a compound?
The parts of a mixture keep their properties, but the parts of a compound do not keep their properties.
What is the function of the cell wall?
to support the cell
Create a food chain using the following organisms:
krill, orca, squid, plant-like plankton, animal-like plankton
plant-like plankton - animal-like plankton - krill - squid - orca
Describe weathering, erosion, and deposition.
Erosion is the movement of small pieces of rock and/or earth being moved from one area to another.
Deposition is the setting down of small pieces of rock and/or earth in another place.