Earth
What layer of earth do we live on?
The crust.
What is the basic unit of life?
The cell
What are the three states of matter?
Solid, liquid & gas.
What is the closest planet to the Sun?
Mercury
What is the first step in the scientific method?
Asking a question or making an observation.
What causes earthquakes?
The movement of tectonic plates.
What process do plants use to make food?
Photosynthesis
What is the formula for calculating speed?
Speed= DIStance + Time.
What is the largest planet in our solar system?
Jupiter.
An educated guess or prediction that can be tested.
Name the process by which rocks break down into smaller pieces.
Weathering/Decomposing
What is the role of chlorophyll in plants?
Chlorophyll is the pigment in plants that absorbs sunlight which is used to make food during photosynthesis.
What is the force that pulls objects toward the center of the Earth?
Gravity.
What force keeps planets in orbit around the Sun?
What do scientists use to test their hypotheses?
Experiments.
What is the water cycle?
The continuous movement of water on, above, and below Earth's surface.
What is an ecosystem?
A community of living organisms intercacting with their environment.
Name the law that states: "For every action, there is an equal and opposite reaction."
Newton's Third Law of Motion.
What is the name of our galaxy?
The MIlky Way.
What is a variable in an experiment?
A factor that can be changed or controlled.
Explain how sedimentary rocks are formed.
By the accumulation and compression of sediment over time.
Explain the process of natural selection.
It is the process by which organisms better adapted to their environment tend to survive and produce more offspring.
What is the difference between a physical and chemical change?
A physical change affects the form of a substance, while a chemical change alters its composition.
What is the difference between a solar and lunar eclipse?
A solar eclipse ocurrs when the Moon passes between the Sun and Earth, between the Sun and Earth, blocking the Sun.
A lunar eclipse occurs when Earth passes between the Sun and Moon, casting a shadow on the Moon.
Explain the difference between an independent and dependent variable.
The independent variable is the one that is changed or controlled and the dependent variable is the one that is measured or observed in response.