Unit A: Mix & Flow of Matter
Safety labels on chemicals should have what on the following?
WHMIS symbols
What is the smallest unit in Biology?
Cell
A tool used to look at objects over far distances on Earth.
Binoculars
What simple machine uses the placement of the fulcrum to determine its mechanical advantage?
A lever
What is an indicator that would likely show that there is high water quality and a healthy ecosystem in an area?
Large amounts of biodiversity.
Anything that has no fixed shape, can flow, and usually is a liquid or gas.
Fluid
A woman applies perfume to her wrists. The smell of her perfume eventually fills the room. This is an example of what?
Diffusion
Material that allows some, but not all light to pass through is called:
Transparent
What type of simple machine is a grain auger?
Screw
This type of water contains excess dissolved solids that have been picked up as ground water percolates through soil and rock. These solids can build up in pipes in homes, and make it difficult for water to lather (run smoothly)
Hard Water
The difference between a saturated and unsaturated solution is that an unsaturated solution can dissolve more:
Solute
Though there are two, what is one organelle that a plant cell has, in which an animal cell lacks?
Cell Wall and Chroloplasts
When light hits an opaque object, it can't go further. This results in what?
A shadow
What force 'opposes' motion?
Friction
What is the main force that tides rely on? (both high and low tides)
The Gravitational force of the Moon and Earth
A semi-liquid mixture, typically of fine particles of manure, cement, or coal suspended in water:
Slurry
Paramecium & Amoeba are examples of these types of organisms:
Unicellular Organisms
The film in a regular camera is what to our eyes?
Retina
What is the formula for Mechanical Advantage?
Force (output) / Force (input)
Some of the land features created by the movement of glaciers include large inland lakes, where the glacier has dug a huge hole and filled it with water. These inland lakes are called:
Kettle Lakes
Ketchup to Water would be what in terms of viscosity?
More Viscous
Certain materials are allowed to pass through this and others are prevented from passing through.
Semi-Permeable Membrane
Cosmetic mirrors, flashlights, reflecting telescopes, and the headlights in a car are all examples of what types of mirrors?
Concave Mirrors
What type of simple machine is a catapult?
First Class Lever
What land features determines the direction which water will flow over the land?
Continental Divide