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WorksheetsSCIENCE GRADE 8 (3RD QUARTER)
Total questions: 15
Worksheet time: 6mins
Is an instrument that measures atmospheric pressure.
Gas Pressure
Viscosity
Barometer
Diffusion
If you place a capillary tube into a beaker with water, you will notice that the liquid rises up through the tube. This phenomenon shows surface tension.
TRUE
FALSE
A Swedish chemist and one of the founders of modern chemistry.
Charles Coulomb (1736-1806)
Eugen Goldstein (1850-1930)
William Crookes (1832-1919)
Jons Jakob Berzelius (1779-1848)
Proton of this symbol of element *U*
93
92
94
A probable location of an electron around the nucleus is called an (a) .
Three laws of chemical combination
Law of definite mass
Law of multiple proportions
Law of definite composition
Law of mayor
Law of conservation of mass
The first atomic theorists were philosophers...
Democritus of Abdera
Plato
Leucippus of Miletus
John Dalton
Some crystalline solids can exist in various forms. These crystalline solids are called _______.
carbon black
allotropes
crystalline solids
amosphous solids.
1 observable property of solids
Do flow
Have no indefinite shape and volume
Compressible
Compact
Give one property of liquids
(a)
Is defined as force exerted per unit of area.
Pascal
Gas Pressure
Diffusion
Pressure
The observable properties of matter can be explained using a scientific model referred to as the ______.
Properties of Gases
Particle nature of matter model
Capillary tube
Results when white light is passed through a prism.
Continuous spectrum
Ground State
Emission line spectrum
The wave particle property treated electrons as waves leading to the wave mechanical model of an atom or the (a)
Atoms where the d and f sublevels are being filled up belong to d block and f block, respectively. They are called _____.
representative elements
Transition elements and inner transition elements
