This branch of science that studies the physical composition, properties and behavior of matter
What is chemistry?
100
the change of a substance into a new one
What is a chemical reaction?
100
the 4 strategies to separate solids are
What is using a sieve, magnet, air, and water?
100
This is a chemical reaction
What is mixing 2 or more materials together to form a new material?
100
How is a water bug able to walk on water?
What is surface tension?
200
a homogenous mixture where the solute is evenly distributed
What is a solution?
200
a point where the solution cannot dissolve any more solute
What is saturation?
200
True or False: sugar will dissolve quicker in hot water than warm water. Explain your answer
What is true. This is because the energy (heat) from the hot water makes the particles bounce around and hit each other
200
These are the 4 indicators of a chemical reaction taking place
What are colour change, temperature change, gas formation, and liquid to solid?
200
Adhesion means
What is water being attracted to other subtances
300
a process where the particles of one substance becomes completely mixed with another and stay that way forever
What is dissolving?
300
water is attracted to water
What is cohesion?
300
the substance dissolved (usually the substance of smaller quantity) is called
What is the solute?
300
Give the definitions to reversible and irreversible reaction
What is changes that can go back to its original form and changes that cannot go back to its original forms
300
Cohesion means
What is water being attracted to water
400
property of the surface of a liquid that allows it to resist an external force
What is surface tension?
400
water is attracted to other substances
What is adhesion?
400
The substance doing the dissolving (substance of larger quantity) is the
What is solvent?
400
When we mixed vinegar with baking soda, we created
What is carbon dioxide?
400
_______ and ________ are two special kinds of chemicals
What are acids and bases?
500
deposits of minerals that form from ceilings
What are stalactites?
500
deposits of minerals that form from the ground
What are stalacmites?
500
Explain why 10 or more spoonfuls of sugar did not all dissolve in 100 cm3 of water.
What is the saturation level has been reached so no more sugar can be dissolved
500
Explain what crystals are and how they are formed
What is an organized group of molecules. they are formed by the water molecules evaporating and the remaining atoms bond together to form a specific shape