Matter
Ecosystems
Waves
Molecules and Organisms
Motion
100
Anything that takes up space and has mass.
What is matter?
100
Levels of organization listed correctly.
What is organism-population-community-ecosystem?
100
The number of waves that can pass a given point in one second.
a. Amplitude
b. Friction
c. Crest
d. Frequency
What is frequency?
100
The cell membrane
a. Can only be found in plant cells
b. Is a hard shell around the cell
c. Does not exist in some cells
d. Controls the movement of materials coming in and out of the cell
What is controls the movement of materials coming in and out of the cell?
100
What is the force that resists motion between two surfaces that are in contact?
a. Gravity
b. Friction
c. Inertia
d. Acceleration
What is friction?
200
A change in which the form or appearance of matter changes, but not its composition.
What is a physical change?
200
An organism that can make its own food and is typically the first level of a food web.
What are producers?
200
When a wave’s energy is transferred to an object, rather than being transmitted though it or reflected by it, It is__________.
a. Reflected
b. Transmitted
c. Absorbed
d. Refracted
What is absorbed?
200
What is a difference between a plant and an animal cell?
a. animal cells have chloroplasts
b. Plant cells have a cell wall and animal cells do not
c. Animal cells do not have ribosomes and plant cells do
d. All of the above
What is plant cells have a cell wall and animal cells do not?
200
What force will eventually act on the ballerina?
What is gravity?
300
An example of this type of change would be leaves changing colors in the fall.
What is chemical change?
300
All of the living and nonliving parts of a particular area make up...
What is the ecosystem?
300
Light shining through a glass window to provide natural sunlight in a house is an example of ____________?
a. Absorption
b. Refraction
c. Reflection
d. transmission
What is transmission?
300
Cellular respiration is
a. The process by which organisms use oxygen to break down food molecules to get chemical energy
b. Plants using sunlight and water to produce their own energy in the form of glucose
c. The breaking down of fats so that they are emulsified
d. All the above
What is the process by which organisms use oxygen to break down food molecules to get chemical energy?
300
Unless a balanced force is applied, what will an object do naturally?
a. Begin to change direction
b. Speed up until it reaches its maximum speed
c. Slow down
d. Maintain its current speed and direction
What is maintain its current speed and direction?
400
What property stays the same during physical and chemical changes?
density
shape
mass
arrangement of particles
What is mass?
400
I am an organism of our classroom ecosystem. All of us together make this up.
What is population?
400
Which of these are are advantages of digital signals?
a. Digital signals do not break down over time
b. Digital signals are inexpensive
c. Digital signals are not stable
d. Digital signals are lighter than analog signals
What is digital signals do not break down over time?
400
Cell organelle that packages and distributes materials from the endoplasmic reticulum.
What is the golgi apparatus?
400
True or False.
An example of acceleration includes an object speeding up/slowing down or turning direction.
What is true?
500
Water vapor forming clouds is an example of
What is condensation?
500
The decomposers in this ecosystem are...
What are the bacteria and the worm?
500
This type of wave travels in the same direction as the vibrations that produce it.
A. Transverse
B. Longitudinal
What are longitudinal waves?
500
This part of a cell fills the area between the cell membrane and the nucleus and allows cell organelles to move throughout the cell.
What is the cytoplasm?
500
This type of force depends on the masses of the objects and distance between them. For example this force holds the solar system together.
What is gravitational force?
600
An example of a chemical property would be
color
mass
density
ability to burn
What is ability to burn?
600
In an ecosystem, these organisms break down biotic wastes and dead organisms, returning them to the ecosystem.
What are decomposers?
600
Which of the following is a property of a mechanical wave?
Amplitude
Weight
Color
Incidence
What is amplitude?
600
This cell organelle (found in both plants and animals) is responsible for converting energy in food to energy used by the cell.
What is mitochondria?
600
Which of the following indicates the forces of an object are balanced?
Object speeds up.
Object slows down.
Object moves at a constant velocity.
Object turns.
What is the object moves at a constant velocity?