Fibre to Fabric — Science STD 7 — Question

Calculate the speed of a car that travels 150 metres in 10 seconds. Express your answer in km/h.

What is the shape of the Earth's orbit?

Did you inhale the same number of times as you exhaled?

Is the rate of breathing same for all the respiring organism?

State the equation for the process of photosynthesis.

Rusting of an iron object is faster is coastal areas than in desert area. Explain why?

Name the reaction which occurs when an acid is mixed with base.

Paridhi and Anusha of Grade 7 started running for their morning workout. After they completed their running, they counted their breaths per minute. Anusha was breating faster than Paridhi. Provide at least two possible explanations for why Anusha was breathing faster than Paridhi.

What is the phenomenon that occurs when the Sun, Earth, and Moon align in a straight line?

Give an example of parasites.