Bath Bombs/Chemical Reactions
Definition: How a substance interacts with fire.
Flammability
Name a scenario that would require you to use an MRE.
Iodine turns black when this molecule is present.
Starch
What should we always wear when conducting investigations with chemicals?
Goggles
Name three different body systems
digestive, respiratory, nervous, circulatory, skeletal, muscular...
The amount of matter/mass in a given space.
Density
What is the difference between an exothermic and endothermic reaction?
Exothermic- produces heat/energy, Endothermic- takes in heat from its surroundings/requires heat.
What molecule does M'Kenna have too much of in her intestines?
Glucose
Besides wearing goggles, what is one additional safety measure we can take when working with fire?
hair back, not reaching over a flame
What is fatigue?
feeling tired/low energy
A substance has _______ that can help to identify it.
Properties
What were the two reactants we used in our heaters?
copper sulfate/root killer, and aluminum
What is in our saliva that breaks down carbohydrates?
amylase
If you get a chemical on your skin, what should you do?
Tell the teacher, wash skin immediately
If someone is having trouble breathing, which system is being impacted?
respiratory
Less dense gasses ____________ when surrounded by denser gasses/liquids.
rise/float upwards
What does the "danger zone" refer to in terms of food safety?
The temperature range at which bacteria can grow in food if it isn't kept cold.
Does food pass through the small intestine first or the large intestine?
Small Intestine
What is the safest way to smell a chemical?
Wafting it towards you (don't smell directly)
Definition: Whether or not a substance will dissolve in a liquid
Solubility
Name one ingredient that was in the hand warmers and the MRE heater.
Iron
What gland produces saliva?
The salivary gland.
Explain the rules that are being broken in this scenario:
Billy is in 1st period and he skipped breakfast today. He decides to have a bagel and eat it during the science lab when the teacher is not looking. During the lab, he decides to mix chemicals together without reading instructions. In the process, he breaks a glass test tube and cuts his hand on the glass. He is a rush to get out to recess so he doesn't tell the teacher and leaves the glass on the lab table.
1. Eating during labs.
2. Mixing chemicals without reading instructions.
3. Not telling the teacher about his cut or cleaning up the area.
skin