Motion and Time — Science STD 7 — Question

In case you do not have a sewerage system in your locality, find out how sewage is being disposed off?

Which type of soil absorbs more water but allows less wateMo percolate?

What is the colour of rust?

Boojho had the following parts of a rose plant-a leaf, roots, a branch, a flower, a bud and pollen grains. Which of them can be used to grow a new rose plant?

Fungus, moss and fern reproduce by a common method of asexual reproduction. Name the method.

Boojho wants to know why flowers are generally so colourful and fragrant? Is it to attract insects?

We learnt in chapter 1 that plants produce their food by a process called photosynthesis. Can we call photosynthesis a chemical change?

Insects have a special organ present to carry out respiration. What is that organ called?

Name the type of food of ant.

Paheli wonders which side of the heart will have oxygen-rich blood and which side will have carbon dioxide-rich blood.