Definitions
What is a solute?
A substance that dissolves in a solvent. ie salt in saltwater
If I were to get my beans mixed with my rice, what separation technique would I use to separate them?
Handpicking
Give an example of when magnetism should be used as a separation technique.
Any correct response will be taken.
What are the three states of matter?
Solid, liquid, and gas.
What is an animal that is both predator and prey?
Snake, frog, etc.
What is a solvent?
Needed salt and having salt water only available. Other answers are acceptable.
When would you use sieving as a separation technique?
Multiple answers will be accepted.
What is matter?
Anything that has mass and takes up space.
What is the difference between a food chain and a food web?
A food web consists of multiple interconnected food chains.
What is an example of a suspension?
Mud + water, sand + water, etc.
What happens when a liquid reaches its boiling point?
It changes from a liquid to a gas.
What does sedimentation & decantation mean?
To allow a mixture to have its insoluble parts rest to its bottom, then pouring out the remaining liquid.
What is it called to go from a gas to a liquid?
Condensation
What happens to the tertiary consumer if you remove the primary consumer from the food chain?
Removal of the primary consumer from the food chain will result in the secondary consumer not having enough food and the secondary consumer's population will fall. Following this, the tertiary consumer's population will also fall.
What is a homogeneous mixture?
A solution where you cannot distinguish between the solute and the solvent; it is uniform throughout.
When would you employ distillation as a separation technique?
Distillation is used when a mixture consists of liquids with different boiling points.
Separating alcohol from water would be a good example.
In what situation would you use a separation funnel?
A separation funnel is used when a mixture consists of liquids with different densities.
Oil and water would be a good use of a separation funnel.
What temperature is the boiling point of water?
What temperature is the freezing point of water?
100o C
0o C
What is an animal adaptation?
An animal adaptation is a mechanism that helps the animal survive and reproduce in their environment.
Ex. scales on a snake, claws for a predator, camouflage for a chameleon.
What is a colloid?
A colloid is a heterogeneous mixture where microscopically insoluble particles of one substance are dispersed throughout another substance without settling out. ie paint or milk
What is chromatography? What would you use it to separate?
In this method as the water level rises up the filter paper, the different colors in the ink rise and separate from each other. The more soluble colors travel faster up the paper leaving the less soluble colors behind.
What is a separation technique you can use to separate a homogenous mixture?
Evaporation, distillation, filtration, chromatography
What state of matter is this?
No definite shape, takes form of its container; definite volume; particles are close together but can move.
Liquid
What are the different food groups in Guyana?
Staples, food from animals, fruits, vegetables, fats & oils, legumes