Reactions
Physical or chemical change? Water evaporates to steam.
What is a physical change?
What is pH 7, or what is neutral?
The element denoted by C.
What is carbon?
An example of a natural polymer?
Answers will vary: What is ....(silk, wool, DNA, protein, carbohydrates etc)?
The fourth state of matter. A highly energized gas.
What is plasma?
Physical or chemical? Elephant toothpaste.
What is chemical?
Name three examples of acids.
Answers will vary. Any three of the following (orange juice, coffee, wine, lemon juice, stomach acid, citric acid, pop, battery acid etc)
The element denoted by Al.
What is aluminum?
An example of a synthetic polymer?
Answers will vary. What is....(nylon, polyester, vulcanized (manufactured) rubber, Teflon etc)?
The study of matter.
What is chemistry?
Two clues of a chemical change.
Answers will vary. Any two of the following (colour change, bubbles/gas produced, energy is released, irreversible etc)
Name two examples of alkalis or bases.
Answers will vary.
Any two of the following: baking soda, borax, windex, soap, dish soap, Drano, laundry detergent etc.
The common substance with a molecular formula of C12H22O11.
What is sugar?
In slime making, the chemical that helps link the long polymer molecules to each other so they cannot move and flow as easily.
What is borax?
An example of something that isn't matter.
Answers will vary (ex light, feelings, heat, electricity etc)
A reaction that takes in heat from the environment.
What is an endothermic reaction?
The stronger acid. pH of 2 or pH of 6
What is the acid with the pH of 2?
The chemical formula for table salt.
What is NaCl?
Put in order of size from smallest to largest:monomer, atom, molecule, polymer
What is atom, molecule, monomer and polymer?
The element denoted by Hg.
What is mercury?
Red cabbage juice is an example of a natural _________________. Substances that help scientists classify chemicals as acids, bases or neutral.
What is a chemical indicator?
What does pH stands for?
What is potential for hydrogen?
The four elements in all living things.
What is carbon, hydrogen, nitrogen, and oxygen?
The process by which monomers combine chemically to form polymers.
What is polymerization?
Explain the main points of the particle theory.
What is all matter is made up of atoms? What is the particles are in constant motion? What is the particles have space between them? What is the articles move faster and get farther apart when heated?