1) what is the purpose of seed dispersal  a) to prevent overcrowding b) to prevent overcrowding so as to reduce competition for light energy to make food, water and nutrients c) to ensure that the seeds land further away from the parent plant d) because the parent plant does not like its seeds 2) which of the following is NOT a structure of seeds dispersed by animals a) juicy, fragrant and sweet b) have hooks or stiff hair c) hard seeds d) bitter 3) which option correctly states ALL the characteristics of seeds being dispersed by water? a) waterproof outer layer b) parachute-like structure, waterproof outer layer and fibrous husks  c) can float, waterproof outer layer and fibrous husks d) have fruit walls that split open 4) what is an example of seeds dispersed by explosive action? a) rubber seeds b) papaya c) lalang d) coconut 5) which of the following is NOT a form of energy  a) kinetic energy b) magnetic energy c) gravitational potential energy d) chemical potential energy 6) which bee has a higher kinetic energy  a) bee at 10g travelling at a speed of 8km/h b) bee at 5g travelling at a speed of 8km/h 7) gravitational potential energy is ONLY affected by its mass a) true b) false 8) which of the following is the full energy conversion for an angry bird getting shoot by a rubber band?  a) elastic potential energy->kinetic energy b) elastic potential energy-> kinetic energy-> gravitational potential energy -> kinetic energy-> sound +heat energy c) chemical potential energy-> elastic potential energy d) kinetic energy -> elastic potential energy 9) which of the following is true a) we see objects because our eyes give off light b) we see objects because the objects give off light c) we see objects because we have superpowers d) we see objects because the objects reflect light 10) which of the following is the energy conversion for a person who is running a) chemical potential energy-> gravitational potential energy b) chemical potential energy-> frictional energy c) chemical potential energy -> kinetic energy d) gravitational potential energy -> chemical potential energy -> kinetic energy

science quiz on dispersal+ forms & uses of energy

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