Methods of Separation in Everyday Life — Science STD 6 — Question

Answer the following questions.

1. List all those components of food that provide nutrients.
2. Mention two components of food that do not provide nutrients.

Which of the following leaves have reticulate venation?
Wheat, tulsi, maize, grass, coriander (dhania), China rose

Have you seen any other organism besides redworms, in your pit? If yes, try to find out their names. Draw pictures of these.

What is a shadow? How is it formed? How does the colour of an opaque object affect the colour of the shadow?

Label and colour the different parts of the plant given below.

Bones are hard structures and cannot be bent. But, we can still bend our elbow, knee, etc. How is this possible?

What do you mean by herbivores and carnivores animals?

Why is atmosphere called the place where exchange of gases in nature occurs?

A sheet of plywood, a piece of muslin cloth and that of a transparent glass, all of the same size and shape were placed at A one by one in the arrangement shown in Fig. Will the shadow be formed in each case. If yes, how will the shadow on the screen be different in each case? Give reasons for your answer.

Boojho was having difficulty in seeing things in dim light. The doctor tested his eyesight and prescribed a particular vitamin supplement. He also advised him to include a few food items in his diet.

1. Which deficiency disease is he suffering from?
2. Which food component may be lacking in his diet?
3. Suggest some food items that he should include in his diet.