Chemical Reactions
This is one sign a change has occurred, such as bubbles/gas production or a precipitate forms.
What is evidence of a chemical reaction?
The type of energy an object has when it is moving.
What is kinetic energy?
A push or pull on an object.
What is force?
This is the basic unit of life.
What are cells?
This movement of Earth causes day and night.
What is rotation?
During a chemical reaction, atoms are not lost or destroyed, but instead, they do this.
What is rearrange?
When you pick up a book from the floor and place it on a shelf, this type of energy increases.
What is gravitational potential energy?
The unit used to measure force.
What is a Newton?
This structure controls what enters and leaves the cell.
What is the cell membrane?
This is the outermost layer of Earth where we live.
What is the crust?
This law states that mass is the same before and after a chemical reaction has occurred.
What is the Law of Conservation of Mass?
This factor, along with speed, determines how much kinetic energy an object has.
What is mass?
This law states that an object will stay at rest or in motion unless acted on by an unbalanced force.
What is Newton's first law of motion?
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What is the Law of Inertia?
Cells combine to form these, which then form organs.
What are tissues?
The movement of these causes earthquakes and volcanoes.
What are tectonic plates?
In an open system, mass appears to decrease after a reaction because this leaves the system.
What is gas?
When friction causes an object to warm up, energy is being converted into this form.
What is thermal energy?
When the same force is applied, an object with less mass will have this greater change in motion.
What is acceleration?
If this body system fails to send signals, the body cannot respond to stimuli.
What is the nervous system?
This force keeps planets in orbit around the Sun and the Moon in orbit around Earth.
What is gravity?
A student claims mass is lost when wood burns; this explains why that is incorrect.
What is, matter is converted into gases that escape, but atoms are not destroyed.
When you eat food and your body uses it for movement, energy changes from this form into mechanical energy.
What is chemical energy?
When you jump off a small boat and it moves backward, this law explains the motion.
What is Newton’s Third Law of Motion?
These two systems work together to break down food and deliver nutrients to cells.
What are the digestive and circulatory systems?
This process breaks down rocks into smaller pieces without changing their composition.
What is weathering?