Cells & Organelles
This is the basic unit of life.
What is a cell?
This property tells how much matter is in a given space.
What is density?
This law explains why a moving soccer ball keeps rolling until friction or another force stops it.
What is Newton’s First Law?
This is the main reason we have seasons on Earth.
What is Earth’s tilted axis?
This bond happens when atoms share electrons.
What is a covalent bond?
This organelle is the powerhouse of the cell
What is the mitochondria
This chemical property describes how a substance reacts with other substances, like acid or oxygen.
What is reactivity?
A heavier object needs more force to speed up. That’s explained by this law.
What is Newton’s Second Law?
The Moon stays in orbit around Earth because of this invisible force.
What is gravity?
In this type of bond, electrons are transferred between atoms.
What is an ionic bond?
This organelle contains the cell’s genetic material and controls cell activities.
What is the nucleus?
Breaking glass is a physical change because it doesn’t change this.
What is the chemical structure?
This word describes an object’s tendency to resist changes in its motion.
What is inertia?
During winter in the Northern Hemisphere, Earth is tilted in this direction.
What is away from the Sun?
In a water molecule, each hydrogen shares electrons with oxygen, forming this type of bond.
What is a covalent bond?
This structure surrounds the cell and controls what enters and leaves.
What is the cell membrane?
This type of change happens when a new substance with new properties is formed.
What is a chemical change?
A swimmer pushes water backward, and the water pushes them forward. This is an example of which law?
What is Newton’s Third Law?
This motion of Earth causes seasons as it takes about 365 days to complete.
What is revolution?
When a metal and a nonmetal combine, they usually form this kind of bond.
What is an ionic bond?
This organelle is found in plant cells and is responsible for photosynthesis.
What is the chloroplast?
This physical property of a liquid describes how easily it pours or flows.
What is viscosity?
A 5 kg object accelerating at 3 m/s² has this amount of force acting on it.
What is 15 newtons?
Gravity increases if these two factors increase.
What are mass and closeness (or decreased distance)?
A sodium atom becomes positively charged when it does this with an electron.
What is loses it?