Elements, Compounds and Mixtures — Science STD 7 — Question

Observe the diagram and answer the questions.

1.What habitat does this camel live in?
2.State any 2 of its body adaptations to survive in desert?
3.How does a camel protect itself from sand storms or winds carrying sand?

Describe natural resources with reference to the following
Ocean resources

Observe any one flower and its various parts and describe it in your own words.

Observe the diagrams and answer the questions given below:

1.Name the methods shown.
2.Give 2 points of difference between the methods.

Find the plant parts.

Explain the uses and the harmful effects of, micro-organisms.

Describe natural resources with reference to the following
Mineral resources

1.Take sugar in a test tube and heat the test tube. Observe what happens. What remains behind?
2.Using tongs hold a magnesium ribbon in a flame and observe what changes took place?
3.What does the name carbon dioxide imply – how many and which elements is this substance made of?
4.Which of these are compound, which are elements?
5.What is the smallest particle of a compound called?

Draw a neat labelled diagram of fish and answer the following questions.

1.Why do fish have a body tapering towards both its ends?
2.Why do Fish have transparent eyelids.
3.How are they able to float?

Describe natural resources with reference to the following
Forest resources