9th Grade Science Honors
This is a quiz i needed to make in order to study. You should take it also!
- 1.The formula for Mass is
- A.
M = D x V
- B.
M = D/V
- C.
M = V/D
- 2.Why are elements and compounds classified as pure substances?
- 3.How do mixtures differ from pure substances?
- 4.A colloid is_____.
- A.
Can filter, cannot scatter light, particles are small
- B.
Large particles, cannot filter, separates into layers
- C.
Particles are intermediate in size, scatter light, and cannot filter
- 5.A suspension is _______.
- A.
A heterogeneous mixture, can filter, and separates into layers.
- B.
A homogeneous mixture, can filter, and separates into layers.
- C.
A heterogeneous mixture, cannot filter, separates into layers.
- 6.A solution is __________.
- A.
Homogeneous mixture, small particles, cannot separate, can be filtered, can see through it
- B.
Homogeneous mixture, small particles, cannot separate or be filtered, and is transparent or see through.
- C.
Heterogeneous mixture, small particles, cannot be separated or filtered, is transparent
- 7.What Swedish chemist suggested the elements to be represented with symbols in the year 1813?
- A.
Johann Shvagen
- B.
Jons Brouel
- C.
Johann Berpolis
- D.
Jons Berzelis
- 8.The properties of a compound are the same as the substances that make it up.
- A.
True
- B.
False
- 9.What properties do you use to separate mixtures?
- A.
Filtration and distillation
- B.
Distillation and dehydration
- C.
Filtration and dehydration
- 10.Define a physical change and give an example.
- 11.Define viscosity, conductivity, and malleability.
- 12.Density is ________.
- 13.Density can be used to test the ????? of a ????.
- A.
Volume of a mass
- B.
Purity of a material
- C.
Mass of a cubic centimeter
- D.
Purity of a substance
- 14.Physical properties can be used to....
- A.
Identify a material, choose a material for no purpose, or to gather the substances in a mixture.
- B.
Identify a material, to separate the substances in a mixture, and to choose a material for a specific purpose.
- 15.The formula to calculate density is________.
- 16.1Mass = __.Density = __ or __. Volume = __ or __.
- A.
Mass = mL Density = g or g/cm3 Volume = g/mL or cm3
- B.
Mass = g Density = g/cm3 or g/mL Volume = cm3 or mL
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