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Anjali asks the following tasks to be performed by students of Class VII while making an electromagnet ( not in the correct sequence ):
a. Place some pins near the end of a nail
b. Switch on the current and observe what happens
c. Wind a copper wire tightly around an iron nail
d. Connect free ends of the wire to the terminals of a cell
Which one of the following is the correct sequence of tasks to be performed to achieve the desired result?
While teaching a correct method of doing experiment on seed germination, the teacher tells the students to follow the steps. Which of them is the correct sequence of doing the experiment?
1. Put the seeds in water in a petri dish.
2. Observe the germinated seeds.
3. Select the seeds (4-15).
4. Keep the petri dish for 3-4 days at room temperature (25-30°C).
5. Keep changing the water every day.
Kavita wants to teach the students about working of electromagnets. She tells the students about the steps to make an electromagnet which are as follows
A. Place some pins near iron nail.
B. Flow electricity and watch what happens
C. Wind the iron nail with copper wire
D. Join the wire end with the terminals (+ and -) of the cell.
Which of the following sequence is correct to get the desired result by the students.
27 videos|78 docs|31 tests
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27 videos|78 docs|31 tests
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