Biology
The chemical indicator solution that turns from yellow-orange to deep blue-black when it touches a food containing starch.
Iodine solution
The three essential components of the Fire Triangle that are required for a combustion reaction to happen.
Fuel, Oxygen, and Heat
The phrase used to describe what happens to a ray of light when it passes from air into a glass block and bends.
Refraction
The process by which pollen is transferred from the male anther to the female stigma of a plant.
Pollination
The reason why the Noble Gases in Group 0 of the Periodic Table almost never react with any other elements.
They have a full outer shell of electrons
The ultimate fate of energy that is "wasted" by appliances like light bulbs or washing machines.
It dissipates/spreads out into the surroundings as thermal/heat energy
The tiny, microscopic air sacs in the lungs where oxygen gas diffuses into the blood and carbon dioxide diffuses out.
Alveoli
The generic word equation for when any metal reacts with oxygen gas in the air.
Metal + Oxygen --> Metal Oxide
The reason why it is impossible to hear sounds in the vacuum of deep space.
There are no particles to vibrate and pass the sound wave along
The three specific things required for yeast cells to carry out anaerobic respiration during bread-making or brewing.
Glucose/Sugar, Warmth, and No Oxygen
The toxic gas produced during incomplete combustion when a fossil fuel burns in a limited supply of oxygen.
Carbon Monoxide
What happens to the atmospheric pressure acting on your body as you climb higher up a mountain, and why.
It decreases, because there are fewer air particles above you pushing down
The physical difference between the cellular structure of a bacterium and a protozoan like an amoeba.
A bacterium has no nucleus/its DNA is free-floating, while an amoeba has a distinct nucleus
The pattern of reactivity as you move down Group 1 (the Alkali Metals) compared to moving down Group 7 (the Halogens).
Group 1 gets MORE reactive as you go down; Group 7 gets LESS reactive
The difference between a solar eclipse and a lunar eclipse in terms of what object is sitting in the middle.
In a solar eclipse, the Moon is in the middle blocking the Sun; in a lunar eclipse, the Earth is in the middle casting a shadow on the Moon