Show:
Cells and Body Systems
Mix and Flow
Light
Mechanical Systems
100
This organelle is the "command centre" of the cell.
What is the nucleus?
100
This is the name of the principle that pressure applied to one part of a closed system, will be applied equally to all other parts of the system.
What is Pascal's Law?
100

This structure, found in the eye, is respoible for bending light to hit our retina in the correct way.

What is a lense?

100

Many types of sporting equipment [hockey and lacrosse sticks] provide good examples of this type of lever, which has fractional mechanical advantage, but provides greater speed.

What is class III [3]?

200
These structures are designed to greatly increase the surface area on the inside of the small intestine.
What are villi?
200
This term is used to describe the process of a solid, becoming a gas.
What is sublimation?
200
The image formed by this type of lens will always be smaller than the object, upright, and virtual.
What is concave?
200

This is the scientific study about how to create structures and objects that can be used safely and efficiently by our bodies.

What is ergonomics?

300
This structure allows plant cells to maintain their shape.
What is the cell wall?
300

This measurement is often used to describe the viscosity of a substance or how easily it pours.

What is flow rate?

300
When red light, blue light, and green light are produced or reflected together, the result is light of this colour.
What is white?
300
No machine can ever be 100% efficient. This happens because some energy is always lost to heat, as a result of this force.
What is friction?
400
The kidneys are an important part of this system, in the human body:
What is the excretory system?
400
In this state of matter, the particles are tightly packed, and vibrate slightly, from side to side.
What is solid?
400

This form of surgery uses high powered light to reshape the lense of a person with eyesight problems. 

What is laser eye surgery?

400
This term describes a phenomenon by which the distance over which a force is applied is increased, in order to use less force.
What is mechanical advantage?
500
This term describes the movement of water into or out of a cell, in order to balance the concentrations of solutes on either side of the membrane.
What is osmosis?
500

This is the name used for a mixture where you cannot identify the individuals liquids or solids that make it up. 

What is an solution?

500
This part of the human eye is analagous to the digital array, in a digital camera.
What is the retina?
500

On a bike, the front (driving) gear turns once for every two and a half turns of the rear (driven) gear. What is the speed ratio of this system?

What is 2.5?