Life Science
👉 What is the basic unit of life?
✅ Answer: Cell
👉 What is an element?
✅ Answer: A substance made of one type of atom
👉 What form of energy is stored in food?
✅ Answer: Chemical energy
👉 What layer of Earth do we live on?
✅ Answer: Crust
👉 What tool is used to measure temperature?
✅ Answer: Thermometer
👉 Name one structure found in plant cells but not animal cells.
✅ Answer: Cell wall / chloroplast
👉 What is a mixture?
✅ Answer: Two or more substances not chemically combined
👉 What is force?
✅ Answer: A push or pull
👉 What is weather?
✅ Answer: Day-to-day atmospheric conditions
This is the first thing you should do if a chemical splashes into your eyes or on your skin.
What is rinse with water for at least 15 minutes? (using an eyewash station or safety shower).
👉 What is the function of the nucleus?
✅ Answer: Controls cell activities
👉 Name one method used to separate mixtures.
✅ Answer: Filtration / evaporation / distillation
👉 Name the force that pulls objects toward Earth.
✅ Answer: Gravity
👉 Name one renewable energy source.
✅ Answer: Solar / wind / hydro/geothermal/ ocean/ tidal/ biomass/
When heating a substance in a test tube, you should always point the open end of the tube in this direction.
What is away from yourself and others?
👉 Explain diffusion.
✅ Answer: Movement of particles from high to low concentration
👉 What type of reaction releases heat?
✅ Answer: Exothermic
👉 What happens to energy when it is transferred?
✅ Answer: It changes form but is not destroyed
👉 What is pollution?
✅ Answer: Harmful substances in the environment
This piece of glassware is used for precisely measuring the volume of a liquid, rather than just holding or mixing it.
What is a graduated cylinder? (Volumetric flasks or pipettes are also acceptable).
👉 Why are multicellular organisms more complex than unicellular organisms?
✅ Answer: Specialized cells/tissues perform different functions
👉 Explain the difference between a physical and chemical change.
✅ Answer: Physical = no new substance; Chemical = new substance formed
👉 Explain why friction can be both useful and harmful.
✅ Answer: Helps grip but causes wear/heat
👉 Explain one effect of deforestation.
✅ Answer: Habitat loss / climate change / soil erosion
When diluting a strong acid, you should always follow this specific order of mixing to prevent the liquid from splashing or boiling over.
What is adding Acid to Water? (Remember the mnemonic: "A&W" or "Add Acid to Water like you ought-er").