Cells
Density and How Ships Float
Momentum and Waves
Fungi and Bacteria
Balance
How Things Fly
100
Because they lack a cell wall, these types of cells can move and change shape more easily.
What are animal cells?
100
The formula used to calculate density.
What is mass divided by volume?
100
Momentum is the product of mass and this.
What is velocity?
100
Most fungi and bacteria are harmless and perform this vital role.
What is decomposition?
100
This must stay within the base of support for an object to remain balanced.
What is center of gravity?
100
This is the force that planes and birds must overcome to achieve flight.
What is gravity?
200
These cells have the ability to become many different types of cells in the body.
What are stem cells?
200
This density of water is this.
What is 1 g/cm3?
200
Waves transfer this from one place to another.
What is energy?
200
These tiny reproductive cells fall from mushrooms to start new colonies.
What are spores?
200
This structural feature helps tall buildings remain stable despite their height.
What is a wide foundation?
200
These create lift by changing air pressure above and below them.
What are wings?
300
This is why you always begin with low magnification when observing through a microscope.
What is - to easily locate and focus on the specimen.
300
A substance with this density will always float in water.
What is a density greater than 1 g/cm3?
300
This measures the height of a wave from its midpoint to its crest.
What is amplitude?
300
Under good conditions, bacteria can divide this quickly.
What is every 20 minutes?
300
When your back and heels are against a wall, this makes it impossible to pick something up off the floor.
What is the inability to shift your center of gravity forward over your feet?
300
According to Newton’s Third Law, this contributes to a kite lifting into the air when you pull on its string.
What is 'for every action there is an equal and opposite reaction?'
400
This process causes a cell to become specialized in structure and function.
What is cell differentiation?
400
The name of the man who discovered volume could be determined by displacement.
Who is Archimedes?
400
This law states that total momentum in a closed system remains constant.
What is the law of conservation of momentum?
400
This underground network of thread-like structures is the main body of a fungus and absorbs nutrients from the environment.
What is mycelium?
400
The difference between "balancing" and "hanging" in terms of center of gravity.
What is - when balancing, the center of mass is above the point of contact and when hanging, the center of mass is below the point of contact.
400
This principle states that as the speed of air increases, its pressure decreases.
What is Bernoulli's Principle?
500
These participles constantly move and make up all matter, including cells.
What are atoms (or molecules)?
500
A floating object displaces this much water.
What is an amount equal to its weight?
500
These are the types of waves that carry sound.
What are longitudinal waves?
500
These are released during decomposition and recycled into the soil.
What are nutrients?
500
An example of an object where the center of gravity actually lies outside its physical body.
What is a donut?
500
Hummingbirds hover in place by using this unique wing movement.
What is sculling?