Mechanics (Verb. Not the people who are mechanics.)
What is the study of motion?
100
The change in speed or direction something is going.
What is acceleration?
100
Plastics, nylon and synthetic rubber.
What are some man-made polymers?
200
Vinegar, lemon juice, stomach contents and car battery acid.
What are some examples of acids?
200
A mixture where the individual parts of the mixture can be easily seen.
What is a heterogeneous mixture?
200
A great creationist physicist, mathematician, discoverer of the laws of motion and gravity... (and more).
Who is Isaac Newton?
200
A push or pull on an object.
What is force?
200
For every action there is an equal and opposite reaction.
What is Newton's 3rd Law of Motion?
300
A molecule made of repeating small molecules combined.
What is a polymer?
300
A solution in which no more solute can be dissolved in the solvent.
What is a saturated solution?
300
Your books would fly (forward in a car) because of inertia.
What is riding in a car with books on your lap and the car suddenly stops?
300
A mixture where the individual parts of the mixture cannot be easily seen.
What is a homogeneous mixture?
300
A physical change that does not change the chemical substance, but only the appearance of the substance.
What is a physical reaction?
400
A reaction that occurs when two or more chemical substances interact with each other and change into different chemical substances.
What is a chemical reaction?
400
Mixtures are compounds that are not chemically combined but rather physically mixed.
What is difference between a mixture and a compound?
400
Something at rest stays at rest until something forces it to move and something in motion stays in motion in a straight line until something forces it to stop. (Inertia!)
What is Newton's 1st Law of Motion?
400
A solid with a regular repeating arrangement of atoms.
What is a crystal?
400
Force causes an object to change speed or direction. The change is resisted by the mass of the object.
What is Newton's 2nd Law of Motion?
500
A chemical reaction during which heat energy is released.
What is an exothermic reaction?
500
Evaporation, filtration, sifting, magnetism and chromatography.
What are some ways to separate the component parts of a mixture?
500
A chemical reaction during which heat energy is absorbed.
What is an endothermic reaction?
500
Ammonia, baking soda, toothpaste, caustic drain cleaner, and soap.
What are some examples of bases?
500
Increasing the concentration of the compounds that are being combined, heating or a catalyst.
What factors can influence the rate of a reaction?