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Year 8 Exam  >  Year 8 Tests  >  Test: Stars and galaxies - Year 8 MCQ

Test: Stars and galaxies - Year 8 MCQ


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10 Questions MCQ Test - Test: Stars and galaxies

Test: Stars and galaxies for Year 8 2024 is part of Year 8 preparation. The Test: Stars and galaxies questions and answers have been prepared according to the Year 8 exam syllabus.The Test: Stars and galaxies MCQs are made for Year 8 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Stars and galaxies below.
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Test: Stars and galaxies - Question 1
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What colour is universal indicator in a neutral solution?

Detailed Solution for Test: Stars and galaxies - Question 1
When using universal indicator liquid, you only ever need to add a few drops to see the colour
Test: Stars and galaxies - Question 2
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Which of the following acids do we have in our stomach?

Detailed Solution for Test: Stars and galaxies - Question 2
The acid kills bacteria and helps to begin the process of digesting proteins
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Test: Stars and galaxies - Question 3
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Which of the following pH numbers indicates a strong acid?

Detailed Solution for Test: Stars and galaxies - Question 3
Be careful not to confuse a strong acid with a concentrated acid - a strong acid will always give a pH value of 1 or 2 until it is extremely dilute
Test: Stars and galaxies - Question 4
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What colour is universal indicator in a strong alkali?
Detailed Solution for Test: Stars and galaxies - Question 4
For weak alkalis, the colour is more of a blueish-green. It is often easier to see the colour using universal indicator paper
Test: Stars and galaxies - Question 5
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Strong acids and strong alkalis are.......
Detailed Solution for Test: Stars and galaxies - Question 5
We use the word corrosive for acids and caustic for alkalis, either way, if you get any on your skin, they are both harmful and will cause a chemical burn
Test: Stars and galaxies - Question 6
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Which of the following substances contain an alkali?
Detailed Solution for Test: Stars and galaxies - Question 6
It is weak enough to be used in food
Test: Stars and galaxies - Question 7
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What is the primary source of energy for stars?
Detailed Solution for Test: Stars and galaxies - Question 7

Stars generate energy through nuclear fusion in their cores, where hydrogen atoms fuse to form helium. This process releases enormous amounts of energy that powers the star.

Test: Stars and galaxies - Question 8
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Which of the following substances contain acid?
Detailed Solution for Test: Stars and galaxies - Question 8
Citrus fruit (oranges, lemons etc) contain citric acid
Test: Stars and galaxies - Question 9
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Which of the following is the largest type of galaxy in terms of size and number of stars?
Detailed Solution for Test: Stars and galaxies - Question 9

Elliptical galaxies are typically large and contain a vast number of stars. They have a more rounded or elliptical shape compared to spiral or irregular galaxies.

Test: Stars and galaxies - Question 10
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What is the name for the process by which a massive star ends its life in a cataclysmic explosion?
Detailed Solution for Test: Stars and galaxies - Question 10

A supernova is a powerful explosion that occurs at the end of the life cycle of a massive star. It releases a tremendous amount of energy and can briefly outshine entire galaxies.

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