What is the cell structure that controls the cell and stores information?
Nucleus
100
A sprout becomes a tree
Growth
100
What is the formula for calculating density?
Density = mass / volume
100
What's the process of turning solid into liquid called?
Melting
100
Write a full definition of a compound:
A compound is made up of 2 or more DIFFERENT types of atoms CHEMICALLY JOINED together
200
What is the cell structure that controls the movement of substances in and out of the cell?
Cell membrane
200
Removing wastes from the body, including waste gases
Excretion
200
A box has a mass of 5 g and volume of 20 cm3. What is its density in 2 decimal places?
0.25 g/cm3
200
Solid, liquid, or gas?: Particles are in ordered rows and vibrating
Solid
200
Write a full definition of an element:
A substance made up of only ONE type of atom and cannot be broken down into anything simpler.
300
What is the cell structure that makes food for the plant with photosynthesis?
Chloroplast
300
Opening an umbrella because it's raining
Sensitivity
300
What is the formula for calculating the volume of a rectangular box?
Volume = length x width x height
300
Solid, liquid or gas: Particles are close together, arranged in a chaotic jumble and moving in random directions.
Liquid
300
Write a word equation to show magnesium and oxygen combining to make magnesium oxide:
magnesium + oxygen --> magnesium oxide
400
What are the THREE cells structures that plant and animal cells have in COMMON?
Cell membrane, nucleus, cytoplasm
400
Turning the chemical energy in food into useful energy
Respiration
400
A rectangular box has a length of 5 cm, width of 2 cm, and height of 2 cm. When measured on a balance, its mass was found to be 10 g. What is its density?
0.5 g/cm3
400
What is the process called where a liquid is turned into gas?
Evaporation
400
A measure of how easily and violently a substance will chemical react with another substance
Reactivity
500
Name the THREE specialised structures that plant cells have but animals don't: