Well Water is the Hydrosphere because it contains water, Land and rock is the biosphere, and air is the atmosphere. Those are in three different layers of the Earth. HAPPY TO HELP!
Answer:
The characteristics of a good/safe experiment are:
- Equipment is used according to its purpose
- Workers are wearing protective clothing and goggles
- All directions are followed for a successful experiment
- There is proper ventilation
- Toxins are used responsibly
- Sharp tools and fires are handled or supervised by an adult
- All information from the experiment is recorded
- Photographs are taken if necessary
- Experiment is repeated for valid results
- Different people try the experiment to compare results
Hope this helps ya :D
<span>Robert Hooke did this in 1665</span>