Question

What are best ideas for science project on theme need of the hour.​

Answer 1

Need of the hour refers to something which should be done as soon as possible so you can opt any of the listed :

• Pollution
• Environmental Conservation
• Afforestation
• Water Conservation
• Global Warming

Since you need it for your science project , you should not opt any social problems .

Answer 2

Answer:

water cycle

structure of eye and skin

layers of atmosphere

layer of earth

Explanation:

these all project is easily fount on google and it is very easy