Motion and time
Classify the following as motion along a straight line, circular or oscillatory motion:
(i) Motion of your hands while running.
(ii) Motion of a horse pulling a cart on a straight road.
(iii) Motion of a child in a merry-go-round.
(iv) Motion of a child on a see-saw.
(v) Motion of the hammer of an electric bell.
(vi) Motion of a train on a straight bridge.
Reproduction in plants
Describe the various ways by which seeds are dispersed.
Reproduction in plants
How does the process of fertilisation take place in flowers?
Reproduction in plants
Explain the difference between self-pollination and cross-pollination.
Reproduction in plants
State the main difference between asexual and sexual reproduction.
Reproduction in plants
Explain what you understand by sexual reproduction.
Reproduction in plants
Describe the different methods of asexual reproduction. Give examples
Transportation in Animals and Plants
Why is it necessary to excrete waste products?
Transportation in Animals and Plants
Describe the function of the heart
Transportation in Animals and Plants
What makes the blood look red?
