question_answer

Vaniya wants to set up a model to demonstrate the greenhouse effect. Her teacher provided her with the materials she needed: two tall glass jars with lids, two laboratory thermometers, and a table lamp. Her teacher also listed the methods in random sequences as shown below.

(i) Record the temperature in both jars after 5, 10 and 15 minutes.

(ii) Cover one jar with its lid. Record the temperature for both jars (at 0 minute) in a table in the worksheet.

(iii) Place two glass jars lying on their sides under the sun.

(iv) Position a thermometer in each jar so that you can read the temperature easily.

If her teacher advised her to plan her method such that (iii) is in Step 1, then which of the following is the correct sequence of steps?

A)

	Step 2	Step 3	Step 4
	(iv)	(i)	(i)

B)

(ii)

(iv)

(i)

C)

(iv)

(i)

(ii)

D)

(i)

(ii)

(iv)