Page 1 - CHEMISTRY-H.A-3-CH-1- CLASS-8

SAI INTERNATIONAL SCHOOL
CLASS – VIII
SUBJECT – CHEMISTRY
TOPIC– EXPLORING THE INVESTIGATIVE WORLD OF SCIENCE
SUB TOPIC – SCIENTIFIC INVEGATION PROCESS
HOME ASSIGNMENT-3

Q. No. Questions
Choose the correct option from the following:
a) If both Assertion and Reason are correct and Reason is the correct explanation
of Assertion.
b) If both Assertion and Reason are correct, b
Asking Scientific Questions
c) ut Reason is not the correct explanation of Assertion.
d) If Assertion is correct but Reason is incorrect.
e) If assertion is incorrect but Reason is correct.
f) If Assertion and Reason both are incorrect.
Q.1. Assertion (A): Scientific investigation follows a systematic process.
Reason (R): Investigations are done randomly without any steps.
Q.2. Assertion (A): Hypothesis is a possible explanation that can be tested.
Reason (R): Hypothesis is always correct.

Q.3. Which is the first step in a scientific investigation?
a) Experimentation
b) Observation
c) Conclusion
d) Recording results
Q.4. Which step involves testing the hypothesis?
a) Observation

b) Experiment
c) Conclusion
d) Prediction
Q5. Fill in the blanks:
a) A __________ is a step-by-step method used in science to solve problems.
b) The final step of an investigation is drawing a __________.

Q.6 Sita wanted to find out whether plants need water to grow. She grew one plant with
water and another without water.

a) What is her hypothesis?
b) Which step of scientific investigation is she performing?

. Rohan observed that a ball rolls faster on a smooth surface than on a rough surface.
Q.7 He decided to test this by rolling the same ball on both surfaces and measuring the
time taken.

CL-VIII/SIS/ CHEMISTRY/H.A-3-CH-1
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