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4.
In scientific investigation, the process of gathering information from previous
findings about your inquiry is:
5.
A. Testing hypothesis.
B. Communicating results.
C. Putting a final conclusion of your finding.
D. Back-ground research.
A Grade 8 student takes a candle and fixed it on a table. Then light up the
candle. The candle continues to burn. Then he covered the burning candle by
putting an inverted gas jar over it. After a short time, the candle stops burning
proves that:
and gets extinguished. This practical activity of the student
A. A gas jar has ability to produce air.
B. Table is important for holding a candle.
C. Air is necessary for combustion.
D. Candle is one of the sources of light.
6.
Which of the following celestial body is NOT a member of the solar system?
A. An asteroid
C. A comet
7.
B. A satellite
D. A constellation
Which one of the following is NOT true about matter?
A. A matter is made up of tiny particles called atom
B. All Greek philosophers has the same concept about definition of matter
C. State of matter is solid, liquid, gas
D. Matter is anything that has mass and occupies space



Answer :

GinnyAnswer

Final answer:

Background research is critical in scientific investigations, air is essential for combustion, and celestial bodies like asteroids, comets, and satellites are part of the solar system.


Explanation:

Background Research is the process of gathering information from previous findings in scientific investigation. In the practical activity of the student with the candle, when the candle stopped burning after being covered by a gas jar, it demonstrated that air is necessary for combustion.

Regarding matter, it is important to note that not all Greek philosophers had the same concept about the definition of matter. Lastly, all celestial bodies listed, such as an asteroid, a comet, and a satellite, are members of the solar system, whereas a constellation is not part of the solar system.


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