Cells and Systems
We can calculate this property of a substance by dividing its mass by its volume.
What is density?
This is the term given to a mountain peak which has been carved out due to glacial movement
What is a horn?
When light bounces off another object, it is said to do this
What is reflect?
This simple machine provides mechanical advantage by providing a gradual slope for an object to be pushed up
What is an inclined plane
This property of fluids describes how "thick" or "thin" a fluid is.
What is viscosity?
This is a body of water which is shallow enough that sunlight can still reach the bottom throughout
What is a pond?
Why does a red apple appear red
Red is the only colour that is being reflected (all other colours are being absorbed)
What are the two types of lenses on a Compound microscope
What is an Objective lens, and an ocular lens (Will also accept eyepiece)
The equation to calculate work done on an object involves multiplying these two things.
What is distance x force
This is a type of heterogeneous mixture where solid particles do not dissolve in a liquid solution
What is a suspension?
Of all the water on the Earth, how much is freshwater that is currently in the oceans as ice
What is 3%
What is chemiluminescence?
This organ system has allows the body to get rid of food waste from the body.
What is the digestive system?
In terms of Mechanical systems, what is energy?
What is the ability to do work
This branch of engineering makes use of compressed gas or pressurized air to provide fluid power to various systems, including air brakes.
What is pneumatics?
A build up of too much nitrates and phosphates in the water can lead to eutrophication and you may see these
What are algal blooms
These types of cells are found in the retina and are help us detect colour
What are cones
These are two structures found in plant cells, one is to help transport water, and the other is to help transport sugars.
What is Xylem and Phloem
Why can the efficiency of a machine never be equal to or more than 100%
Because energy is always lost through heat, light, or sound (Waste energy)
This is the term for small creatures in fresh and saltwater systems whose presence may help determine how healthy the ecosystem is
What are bioindicators
This is the most powerful type of electromagnetic radiation
What are gamma rays (or waves)