Question

GENERAL SCIENCE
Total Marks: 30
Note: Write a detailed report of each task including names of required
material/resources, procedures, observations, and conclusion/results. All tasks are to be
performed individually and independently. Parents are requested to supervise their kids
to ensure their safety.
1. As we know that the leaves of plants are waterproof due to cuticle. On the same
way, take some pieces of paper of leaf size and make them waterproof. After
completion, put half of these paper pieces in cold water and half in hot water. Do all the
pieces of paper remains waterproof? Explain your observations and results with
justifications
(5 marks)
2. Take small but equal amounts of water and milk in two different but similar
containers. Freeze them by putting in a refrigerator. Now melt them in the sunshine, boil
them on the same stove under the same conditions, and evaporate them completely.
Note their temperature and time during changing of their states. What similarities and
differences you find while changing the states of both of the materials. Support your
investigation results with time and temperature graph.
(5 marks)
3. The periodic table contains a lot of information in it. With the help of that
information calculate the number neutrons present in the non-metallic elements of the
periodic table.
(5 marks)​

Answer 1

Answer:

This is the observation you should do

Explanation:

do it yourself note the observation

HAPPY TO HELP