Question

Q1.Melting of butter on a hot pan is ___________ change.

A. reversible B. irreversible C. chemical D. fast.

Q2. Which of the following is not an irreversible change?

A. ripening of fruits B. baking of cake C. blooming of flowers D. contraction of muscles.

Q3. Which of the following protects the embryo?

A. seed coat B. cotyledon C. seed D. fruit.

Q4. The loss of water through the stomata is called__________

A. transpiration B. transplantation C. transition D. transport



Q1. Draw a labelled diagram of pistil.

Q2. Why is mercury used in thermometers?

Q3. A) Name two plants that have tap roots.

B) What is the function of stem in a potato plant?

Q4. A) Name two non- brittle substances.

B) What is charred sugar?​

Answer 1

1)- Reversible

2)- Contraction of muscles

3)- Seed coat

4)- Transpiration

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Answer 2

1) a)

2) d)

4) a)

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