What type of solution is required to grow a crystal?
A Saturated Solution because you need enough salt to grow on the pipe cleaner.
300
How can you separate iron fillings from sand?
Magnetic Seperation
300
The difference between a physical and chemical change is?
A physical change can be changed backed to its original state. A Chemical change is permanent and can not be reversed.
300
The pH of a neutral liquid is?
7
300
A crystal grows through which process?
Accretion
400
Which method do you use to separate water and rice? Explain how you would do it?
Using a Filter you can pour the entire mixture and the water will flow through the filter. The rice will remain in the filter and water will be in the cup.
400
A Chemical reaction can be seen in three different ways, which are they?
Color change, Bubbling/Fizzing/Foaming, Energy release (Fire)
400
Give an example of an acid you tested and the colour of cabbage paper you got? Also what would be the pH range of the acid be?
Acids will vary, pH ranges 0-6
400
Surface tension is
The very top layer of water which forms a thin skin. The water molecules form the strongest bond at that layer.
500
Give an example of a mixture with a liquid and solid, and how would you separate them?
Examples will vary
500
Give an example of a substance you mixed together in your testing powders lab that gave you a chemical reaction?
Varies
500
Give an example of a base you tested and the colour of cabbage paper you get? Also what would be the pH range of the base be?