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What is pollination?
Pollination is the transfer of pollen grains from the anther to the stigma.
What is fertilisation?
Fertilisation is the fusion of male and female reproductive cells.
What are the conditions required for germination?
Water, Oxygen, Warmth
Seed dispersal is required to prevent overcrowding and to reduce competition for what?
Sunlight, Water, Mineral Salts, Space
What is boiling?
Boiling is when liquid gains heat and turns into gas at boiling point.
What is melting?
Melting is when solid gains heat and turns into liquid at melting point.
What is freezing?
Freezing is when liquid loses heat and turns into solid at freezing point.
What are the 3 factors that affect the rate of evaporation?
Temperature, Presence of Wind, Exposed surface area
What is the difference between boiling and evaporation?
Boiling occurs at boiling point while evaporation occurs at any temperature.
Why does more blood move towards the legs during running?
To transport more oxygen and digested food to the leg muscles to release energy and to remove carbon dioxide.
What is an electrical conductor?
Electrical conductor is one that allows current to pass through.
What is an electrical insulator?
Electrical insulator is one that does not allow current to pass through.
What is a good conductor of heat?
A good conductor of heat is one that allows heat to pass through easily.
What is a poor conductor of heat?
A poor conductor of heat is one that does not allow heat to pass through easily.
What is matter?
Matter is anything that has mass and occupies space.
