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Grade 8 Science Exam prep 2022 Flashcards | StudBud
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Grade 8 Science Exam prep 2022
Grade 8 Science Exam prep 2022
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1
True or False - Electrons are negatively charged particles found in the space surrounding the nucleus of an Atom
False
True
2
True or False - Atoms can be chemically bonded to form molecules of elements or molecules of compounds.
True
False
3
_______________ = length x breadth (width) x height
Mass
Volume
Triangle
Density
4
In what year did Russian chemist Dimitri Mendeleev started to develop the Periodic table?
1896
1820
1810
1869
5
a fast moving particle has more kinetic energy than a slower moving particle
True
False
6
True or False - There are 7 rows in the periodic table
True
False
7
Attractive forces:
forces that are found between particles of matter that push the particles away from each other
True
False
8
The D in the triangle stands for DENSITY
False
True
9
To figure out the Mass of an object you can devide Density with Volume
False
True
10
Volume is measured in centimeters (cm³) or meters cubed (m³).
False
True
11
a mixture of two or more substances, usually a solid dissolved in a liquid.
concoction
Mixture
Solution
Blend
12
The word "Atom" is derived from the Greek word: "_______"
Atomoses
Atos
Atomis
Atomos
13
True or False - Substance refers to matter.
True
False
14
Out of the following elements choose the lightest one.
H
CO2
O2
He
15
Out of the following elements which one is the heaviest?
Copper
Lead
Iron
Uranium
16
Give one term for "A substance that is not mixed with any other substance"
Individual substance
Stand alone substance
Pure Substance
Lone substance
17
Milk has a higher density than cream
True
False
18
What is missing in the picture below?
Pronoun
Protins
Protons
Carbon
19
Mass is how much an object weighs
True
False
20
The displacement method can be used to figure out the DENSITY of an object
True
False
21
Continuous random movement of particles in gas or liquid caused by particles in the substance bumping into each other
Collision
Brownian Motion
Dilution
Kinetic energy
22
Density gives an indication how tightly packed particles are in a substance.
True
False
23
The term "indivisible" means that something can not be...
Divided or broken up
Multiplied by itself
Shared and mixed.
Invisible to the naked eye.
24
There is no instrument to measure density
False
True
25
True or False - Matter isn't made up of tiny particles called atoms.
False
True
