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WorksheetsTHE BREAKOUT - 1ST ELIMINATION ROUND
Total questions: 25
Worksheet time: 5mins
In one of your laboratory activities, your teacher asks you to identify the acidity of the sample juice, which instrument are you going to use for this task?
pH Paper
Litmus Paper
If the sample is a/an (a) solution when the color of the litmus paper turns blue.
What is a molecule?
the smallest particle of matter
a bonded group of cells
a constant moving particle
the most basic structure of matter
Which of the following is not a property of a liquid particle?
They are attracted to one another
It moves past one another.
They are in constant motion.
The particles are too close to each other.
The following are subatomic particles of an atom, EXCEPT?
molecules
neutron
electron
proton
Which of the following pair of subatomic particles can be found in the nucleus?
proton, neutron, electron
electron & neutron
proton and electron
proton and neutron
What charge does an electron have?
positive
negative
zero
neutral
How many periods does periodic table of elements have?
5
6
7
8
How many groups are there in the periodic table of element?
15
16
17
18
Who devised/arranged the elements of the periodic table?
Henry Moseley
Dmitri Mendeleev
Charles Darwin
Sir Isaac Newton
Which of the following BEST describes an element?
A type of atom
An atom with a certain amount of protons
An atom with a certain amount particles
An atom with only one type of particle
What process is involved when a liquid becomes a gas particle?
evaporation
condensation
freezing
deposition
A scientist combines hydrogen and oxygen to form water, He then formed what?
An Element
A Compound
A Solution
A Mixture
What type of mixture is shown in the picture?
Homogeneous
Heterogeneous
What type of change is exhibited in this banana?
Physical Change
Chemical Change
What happens during the process of sublimation?
gas turns to liquid
liquid turns to solid
solid turns to gas
gas turns to solid
Which type of medium will the energy transfer the slowest?
Solid
Liquid
Gas
Plasma
Which of the following refers to substances that make up a solution?
Solute and Solvent
Miscible and Immiscible
Solute and Dilute
Solvent and
Water
1. Which particle picture represents a mixture of two compounds?
2. Which particle picture represents a pure compound?
3. Which particle picture represents a mixture of an element and a compound?
4. Which particle picture represents a pure element?
5. Which particle picture represents a mixture of two elements?
6. Which particle picture could represent pure water?
7. Which particle picture could represent something dissolved in water?
