3Q Posttest No. 3
Quiz by Rhodalia Salamat
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Measures 1 skill fromGrade 8SciencePhilippines Curriculum: Grades K-10 (MELC)
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- Q1
Which of the following is NOT a chemical change?
Burning a log of wood
Baking a bread
Dissolving sugar in water
Frying an egg
30sS8MT-IIIc-d-9 - Q2
Which of the following is a sign that a chemical change is taking place?
smelling an offensive odor
watching something dissolve in water
a substance is melted at high heat
the ability to break an object into pieces
30sS8MT-IIIc-d-9 - Q3
Which of the following situations show chemical change?
Rust forms on a hammer that has been left outside too long.
A rock breaks into smaller pieces when it is struck with a hammer.
A solid is formed when heat is removed from a sample of water.
A cup of water turns pink when a few drops of red food coloring are added.
30sS8MT-IIIc-d-9 - Q4
What happens to the particles of a substance after undergoing a chemical change?
Bonds between particles of the substances are broken.
Energy is absorbed or released by the particles.
New bonds are formed between particles of the substances.
All of the above
30sS8MT-IIIc-d-9 - Q5
Physical change is a change in the physical properties of a substance such as size or shape. Which of the following is NOT a physical change?
Burning a log of wood
Dissolving sugar in water
Crushing a can
Breaking a glass
30sS8MT-IIIc-d-9