1What are some science safety rules
- No eating at the work benches
- Don't run around
- Follow all teachers instructions
- Wear eye protection
- Tie hair up
2What is the meaning of Insoluble
Something that does not dissolve
3What is the meaning of Soluble
Something that can dissolve
4What is a Solvent
A substance that dissolves a solute
5What is a Solute
A substance that is dissolved by a solvent
6What is a Solution
A mixture made up of a solvent and a dissolved solute
7What is a Mixture
Substances mixed together that can be physically seperated
8What is Aqueous
Containing water
9Difference between solutuon and a solvent
A solution is made up of a solvent and a solute while a solvent dissolves a solute
10A solution is a ______ dissolved in a _____
solute and solvent
11What is the difference between a concentrated solution and a dilute solution
A concentrated solution has a lot of solute, while a dilute solution has a very small amount of solute
13What is Decanting
Decanting is carefully pouring the liquid from a mixture and leaving the sediment behind
14What is a Mixture
Substances mixed together that can be physically seperated
15What is a Sediment
The solid that settles to the bottom of a liquid
16What is a Residue
The solid that does not pass through a filter
17What is a Filtrate
The liquid that passes through a filter
18What are some examples of a mixture
19How is sand and insoluble substance
It is denser than water, after a while it sinks in the water
20Meaning of Suspension
A liquid or other substance in which solid particles are mixed but not dissolved
21What is Decanting
Decanting means pouring off a liquid to leave a Sediment of insoluble substance behind in the corner
22What is Sedimentation
The process of letting an insoluble substance settle to the bottom of a container is called sedimention
23What is a Centrifuge
A machine with fast spinning container to seperate solids from liquids or fluids of different densities
24How does centrifuging work in a Washing machine
It spins quickly and the water flies out through the holes in the sides. The side of the spin-dryer is like a sieve, and the clothes stay in the bowl
25What is a diagram
A diagram is a simple line drawing looking from the side but a drawing has more details
26How should a diagram be drawn
Every diagramshould be neatly drawn in pencil, and the lines drawn with a ruler. Labels should be neatly printed, and connected to the diagram with an arrow. The arrow head should touch the object it is pointing to. Diagrams should be between 6 and 10 cm or half a page