ACIDS & BASES
What is the range of the pH scale?
0-14
This organ produces a strongly acidic gastric juice, with a pH around 1.5–2.
Stomach
The smallest unit of matter that keeps the properties of an element.
atom
The two ingredients that react together to make slime.
Elmers glue and Borax
This is the exact pH value that counts as neutral.
7
A substance with a pH below 7 that can turn blue litmus paper red is called...
Acid
This organ neutralizes the acidic contents coming from the stomach using bicarbonate.
Small Intestine
Two or more atoms bonded together.
molecule
A long chain made of many small, repeating molecules (monomers) linked together — like the glue used to make slime
polymer
This body system relies on several different enzymes, each with its own optimal pH, to break down food.
Digestive system
This process happens when an acid and a base react together, moving the pH closer to 7.
Neutralization
This type of protein speeds up chemical reactions in the body and works best at a specific pH.
Enzyme
In a chemical equation, this is the name for the starting substances, written on the left side of the arrow.
reactants
This term describes what happens when borate ions connect separate PVA polymer chains together into a network.
Cross-Linking
Unlike an acid-base reaction, this type of reaction links polymer chains together using ions, as seen in the slime lab.
Cross-Linking
A substance, such as litmus paper or BTB, that changes color to show whether something is an acid or a base.
Indicator
This term describes the body's ability to keep internal conditions, like blood pH, stable — and explain why it's dangerous for blood pH to move outside its normal range.
Homeostasis
because enzymes and cells can stop working properly outside the normal range
This law states that matter cannot be created or destroyed in a chemical reaction — atoms only rearrange.
Law of Conservation of Mass
Is burning paper an example of a physical change or chemical change
Chemical change
This is the name for the type of reaction that happens when an antacid neutralizes stomach acid.
Acid-Base Reaction