Respiration
100: What gas do humans take in during breathing that is needed for aerobic respiration?
Oxygen
100: What is the name of the central part of an atom?
Nucleus
100: Name one renewable energy source.
Solar / Hydro / Wind / Geothermal
100: What is the closest star to Earth?
Sun
100: What animal is known as the “King of the Jungle”?
Lion
200: What process describes gas moving from high concentration to low concentration across a membrane?
Diffusion
200: Which subatomic particle has a negative charge?
Electron
200: Which method of heat transfer occurs in solids?
Conduction
200: Which planet is known as the Red Planet?
Mars
200: What colour do you get when you mix blue and yellow paint?
Green
300: Which type of respiration releases more energy: aerobic or anaerobic?
Aerobic
300: What is the proton number also known as?
Atomic Number
300: What type of energy transfer happens through waves?
Radiation
300: What galaxy do we live in?
Milky Way
300: In video games, what is the name of the blocky, open-world game where you mine and build using cubes?
Minecraft!
400: Name one product of anaerobic respiration in animals.
Lactic acid
400: Corrosion of iron forms a reddish compound. What is this common product called?
Iron Oxide / Rust
400: Why does sweating cool you down?
Because when it evaporates, it absorbs energy from your skin
400: What force keeps planets in orbit around the Sun?
Force of Gravity
400: What popular doll brand launched characters like Barbie, Ken, and Skipper?
Mattel
500: During exercise, why does breathing rate increase?
Oxygen debt
500: What type of reaction forms a solid when two solutions are mixed?
Precipitation
500: Name all the steps of convection (4)
1. Liquid at the bottom of the container is heated
2. The warm liquid is less dense and rises in the container
3. Cooler liquid rushes down to replace the warm water
4. The cool water is heated and the process repeats
500: What is the name of the place in a black hole where gravity is strongest and density becomes infinite?
Singularity
500: What is the chemical symbol for the only metal that is a liquid at room temperature?
Hg