What apparatus do you use in this experiment ?

What change did you observe in the thermometer in the given experiment ? What are the apparatus used in this experiment ?

What do you prove from this experiment ?

Which apparatus do you use to measure current in your lab ?

What did they do in their experiment?

You might have conducted and experiment in your school laboratory to prove that CO_2 is essential for Photosynthesis. Raju, who is in 9th class, wanted to perform the same experiment. He had some doubts regarding this experiment. Clarify them. Write the apparatus used to perform this experiment.

What will you prove by this experiment?

Write the apparatus to be used to conduct an experiment of ''Reduction of copper oxide to copper''.

You have conducted this experiment in your class room. Now answer the following questions. What do you prove by conducting this experiment ?

We have conducted experiment that proves the release of oxygen when photosynthesis happens ? i) What are the plants used for this experiment ? Where do they grow ? ii) How did you conduct the above experiment ? In which context are large number of air bubbles released? Did you notice?