Continue the story: As protostars heat up, they undergo Nuclear Fusion (over 1,000,000 Celsius) - the process of...

Hydrogen nuclei combining themselves together

What does "induced charge separation" mean?

When a pos object touches a neutral object (electrons run, protons attract)

What does the Big Bang Theory hypothesize? (choose best-fitting answer)

The beginning of Universe and everything; starting from an atom

What does "charging by induction" refer to?

Putting two objects close to each other (but not directly touching)

Select the characteristic that does not correspond to a Neutron Star

Neutron stars are yellow-red shade

Producers are autotrophs. What is the importance of producers in a trophic cascade?

Producers create photosynthesis and provide energy to other trophic levels

Why are objects Positively/Negatively charged and not Neutrally Charged?

Because electrons jump from object to object

(A) adds Substance A and Substance B together. (A) doesn't see any change, so (A) rips the result in half. What is this?

This is an example of a physical reaction

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Science Exam - Biology, Chemistry, Astronomy, Electricity, Textbook

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This exam consists of all Grade 9 subjects and includes 100 questions.

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Questions 99

Answers

1
Continue the story: As protostars heat up, they undergo Nuclear Fusion (over 1,000,000 Celsius) - the process of...
Hydrogen nuclei combining themselves together
Nuclear gas to fuel the star for billions of years
Burning hydrogen nuclei
Immediately emitting light
2
The current around a parallel circuit is the same.
True
False
3
Unit 1: Ecology - Abiotic means living.
True
False
4
Select the answer that does not represent a greenhouse gas
Carbon Dioxide
Arsole
Ozone
Methane
5
Which constellation is this?
Hydra
Boötes
Alphard
Spica
6
What does "induced charge separation" mean?
When a pos object touches a neutral object (electrons run, protons attract)
When two objects charge each other via induction/conduction/friction
When an object is gives electrons to two different objects
When a negatively charge object becomes positive by removing its electrons
7
What does the Big Bang Theory hypothesize? (choose best-fitting answer)
The attributes of galaxies and celestial objects such as our solar system
The creation of Earth and the moon
The creation of stars (such as our Sun)
The beginning of Universe and everything; starting from an atom
8
This is a...
Rutherford Diagram
Bohr Diagram
John Dalton Diagram
Hertsprung Russell Diagram
9
Fill in the blank for this diagram of Earth.
Asthenosphere
Lower Mantle
Crust
Lithosphere
10
Two non-metals create an ionic compound
False
True
11
Review: What is the first stage of any star?
Nebula
Neutron Star
Protostar
Red Giant
12
Fill in the blank: Fertilizer contains ___ and ___
Nitrogen and Phosphorus
Nitrogen and Carbon
Nitrogen and Calcium
Nitrogen and Oxygen
13
High mass stars have the shortest life span. Select the answer that corresponds to the stage after a Red Supergiant
Black Hole
It reverts back to a Nebula
Neutron Star
Supernova
14
What symbol is this in the WHMIS Pictograms?
Heath Hazard
Biohazardous
Exploding Bomb
Corrosion
15
Fill in the blank in this carbon cycle.
Carbon Dioxide
Plant Respiration
Oxygen
Photosynthesis
16
Unit 2: Chemistry - Select the answer that shows an example of a qualitative property
Yellow
Twenty-four
17
Select the example that describes an ionic compound
Lithium Calcide
Magneseum Xenide
Fluorine Sulfide
Calcium Tennesside
18
What does "charging by induction" refer to?
Putting two objects close to each other (but not directly touching)
Touching two objects together
Rubbing two objects together
19
Select the answer that is not a renewable source of energy
Bioenergy
Geothermal
Solar
Nuclear
20
Earth, a red hot planet full of lava 5 billion years ago faced a collision with a planet named Theia. This resulted in..
The creation of the atmosphere
The creation of the moon
It made Earth rotate (before Earth was not rotating)
The creation of the current temperature
21
What happens to the elements of the periodic table when you begin going down?
They become larger
They have fewer protons and electrons
They become smaller
They have fewer neutrons
22
What circuit component/symbol is this?
Closed Switch
Light
Resistor
Voltmeter
23
What circuit component/symbol is this?
Ammeter
Battery
Resistor
Diode
24
Select the answer that does not represent a conductor
Silver
Sea Water
Steel
Oil
25
Diverse ecosystems are most stable than narrow ecosystems
False
True
26
The asteroid belt is 420,000,000 km from the Sun. Convert this distance into Astronomical Units (au)
2.6 AU
2.8 AU
2.4 AU
2.2 AU
27
Continue the story: Fish begin to die due to the lack of oxygen and the ecosystem begins to collapse. This is called...
Cellular Respiration
Eukaryote
Photosynthesis
Eutrophication
28
Charge is measured in coulombs. What is the symbol for Charge?
Q
C
R
I
29
(A) has a piece of tissue that has 2.5 density. (B) notices the tissue has 4.5 mass. (C) needs to find the volume
2.2
2.0
2.5
1.8
30
How many lunar phases does the moon have?
5 lunar phases
8 lunar phases
7 lunar phases
6 lunar phases
31
The outermost shell of an atom is called...
The outershell
The nucleus
The valence shell
The strongforce
32
(A's) waterbottle has a volume of 26.8 and a density of 41.26. B needs to know the mass of (A's) waterbottle
1191.548
1129.541
1162.153
1105.768
33
Select the answer that best fits the story: As fertilizer is washed into creeks due to the rain, it usually ends up in..
Neighbourhood
Forest
Large bodies of water
Agricultural field
34
Solar flares are large magnetic fields that collide with each other, causing discharges from the sun
True
False
35
A population is a group of the same species living in the same area
False
True
36
The first group of the periodic table is called...
Alkaline
Halogens
Noble Gases
Alkaline Earth Metals
37
Select the characteristic that does not correspond to a Neutron Star
Second most densest object in the Universe
Neutron stars are yellow-red shade
Named after Neutrons; no charges, because protons and electrons lose charge
Only a few kilometers wide
38
What does "charging by conduction" refer to?
Rubbing two objects together
Putting two objects close to each other (but not directly touching)
Touching two objects together
39
Continue the story: Protostars are the early stages of all stars and do not emit light. Gravitational energy causes it..
To heat up
To emit light
To shrink in size, into an extremely dense object
To expand in size
40
What charge would an ion of Radium have?
+2
Share
-1
+1
41
Ohms Law: A lightbulb has a current of 20.2 amperes and a resistance of 15.6 ohms. What is the potential difference?
340.12 Volts
368.12 Volts
315.12 Volts
378.12 Volts
42
Producers are autotrophs. What is the importance of producers in a trophic cascade?
Producers remove carbon emissions from the atmosphere and stop clim. change
Producers are one of the trophic levels
Producers are the first trophic level
Producers create photosynthesis and provide energy to other trophic levels
43
Intermediate-mass stars have the longest lifespan
False
True
44
How long will our Sun live for?
3-4 billion years
7-8 billion years
5-6 billion years
1-2 billion years
45
Why are objects Positively/Negatively charged and not Neutrally Charged?
Because objects begin as negatively/positively charged
Because charges are generated on objects
Because electrons jump from object to object
Because protons jump from object to object
46
Some vinyl is rubbed with a piece of wool. What will the charge on the piece of wool be?
Negative
Positive
No way to tell
Neutral
47
What is a covalent/molecular compound?
One metal and one non-metal
Two non-metals
Two metals
48
(A) adds Substance A and Substance B together. (A) doesn't see any change, so (A) rips the result in half. What is this?
This is an example of a physical reaction
This is an example of a chemical reaction
49
How much energy is passed on (through consumption) to each trophic level?
20%
12%
10%
15%
50
Find the answer for the following graph. Hint: Rise/Run (y2 is 26)
0.3 g/cm^3
0.6 g/cm^3
0.5 g/cm^3
0.4 g/cm^3
51
Select the example that describes a covalent/molecular compound
Diboron Tetrakyrptide
Magneseum Tetrachloride
Sulfur Diradonide
Carbon Monoxide
52
What is "static electricity"? (Choose best fitting answer)
The form of energy derived from the build-up of charged electrons (hold on)
The static of electrons
When there are more electrons than neutrons
When electrons give shocks (i.e. touching an object and getting zapped)
53
What is the study of cosmology? (Choose best-fitting answer)
The study of stars and their evolutions
The study of the Big Bang Theory
The study of planets, asteroids, and Oort clouds
The study of history regarding the universe, galaxies, and others alike
54
Select the answer that does represent one of the Laws of Electrical Charges
Opposites Attract
Opposites Repel
Same charges Attract
Neutral charges Attract better than Negative/Positive Charges
55
(Weight = Mass x Gravity) Jaydon has a mass of 5.4 kg. He stands on Venus with a gravity of 8.9m/s. What is his weight?
44.1 Newtons
42.1 Newtons
40.1 Newtons
48.1 Newtons
56
Unit 3: Astronomy - Select the terrestrial planet
Eris
Saturn
Earth
Jupiter
57
Select the answer that does not demonstrate a form of static electricity
Shocking a friend
Getting electrocuted by lightning
Touching an object and getting shocked by it
The movement of electrons
58
(A) has one brain cell. The brain cell has a density of 25.1 and a mass of 48.6. Determine the volume of the brain cell.
1.85 (rounded)
1.90 (rounded)
1.94 (rounded)
1.82 (rounded)
59
Select the hottest temperature (in colour) for a star
Blue
Red
White
Yellow
60
Which 'sphere' supports life itself?
Hydrosphere
Atmosphere
Biosphere
Lithosphere
61
What is the measurement for Potential Difference?
Volts
Coulombs
Ohms
Amperes
62
(A) adds Substance A to Substance B. Not much happens, but the result changes from red to blue. What is this?
A physical reaction
A chemical reaction
63
What is a load?
A device that converts chemical energy into electrical energy
Anything that electrons can freely move/flow in
Device in electric circuit that controls the flow of electrons
Part of a circuit that converts electrical energy to other forms of energy
64
What happens to the elements when you start going right of the periodic table?
They become less reactive
They become more reactive
They become smaller
They become larger
65
Continue the story: Hydrogen nuclei combine to create helium nuclei, and becomes main sequence. What is the next stage?
The main sequence star becomes a red giant
The main sequence star becomes a red supergiant
The main sequence star becomes a dwarf star
The main sequence star reverst back to a nebula
66
Unit 4: Electricity - Select the renewable source of energy
Coal
Oil
Natural Gas
Wind
67
Continue the story: As the star becomes a red giant, it evolves into a White Dwarf. What does this imply?
It is an intermediate-mass star
It is a low-mass star
There is no indication for the type of star
It is a high-mass star
68
What is the Doppler Effect?
The speed of wavelengths
The speed of lightwaves
The change in lightwaves
The change in wavelengths
69
Is the following a...
Not a circuit
Series Circuit
Parallel Circuit
No way to tell
70
Compared to the star's entire history, High-mass stars stay as supernovas for a brief period (few months) They..
Revert back to a Nebula
Explode
Evolve into a Black Hole
Evolve into a Neutron Star
71
Continue the story: The moon was created by Theia, and shines brightly at night because...
The moon reflects light, making appear bright
The moon undertook nuclear fusion, resulting in an abundance of light
The moon's surface emits light
The moon is extremely hot and radiates light as a result
72
Fluorine Tetrachloride is a valid molecular/covalent compound
False
True
73
Convert 1,210,000,000 into scientific notation
1.21x10^6
1.21x10^9
1.21x10^8
1.21x10^7
74
An atom is a subatomic particle. Select the answer that is not a subatomic particle.
Electron
Muron
Down Quark
Gluon
75
What is an ion?
Atoms with a full valence shell
An adjective to describe atoms with more than one shells
Another name for an atom
Atoms with a greater number of electrons/protons than neutrons
76
"This material could kill you if it is swallowed, inhaled, or absorbed through the skin" Which does this belong to?
Corrosion
Health Hazard
Harmful/Irritant
Toxic
77
Saturn is 1,430,000,000 km from the Sun. Convert this distance into Astronomical Units (au)
8.5 AU
12.5 AU
9.5 AU
10.5 AU
78
Grounding is a form of Discharging. Select the answer that best describes Grounding.
Removing the charges from the grounded object
When charges are removed from an object with high voltage (lighting, etc)
Dispersing the charges into the ground, resulting in a neutral charge
79
This is a Bohr Diagram of an Atom
False
True
80
The nebula becomes a protostar, undergoing nuclear fusion. It then becomes a high-mass main sequence star. What's next?
Supernova
Red Supergiant
Neutron Star
Red Giant
81
Choose the answer that represents a carbon sink
Greenhouse Gases
Factories and Industries
Photosynthesis
Animal Respiration
82
Continue the story: As fertilizer lands in large bodies of water, the algae blooms and overgrows. This...
Helps fish thrive
Is bad for the ecosystem
Purifies the water, making it drink-able
Makes a safe environment for public swimming
83
What charge would an ion of Nitrogen have?
+3
-1
-3
+1
84
How are auroras (aurora borealis) formed?
When carbon gases mix with atmosphere gases and form colourful visuals
When temperatures in the atmosphere reach a certain point, they react
When lightwaves are emitted back to Earth
When projectiles derived from our Sun collide with Earth's upper atmosphere
85
A hairdryer has a current of 238.23 and a voltage of 945.66. What is the resistance for this hairdryer?
3.113248909
3.45208245
38737292011
3.97091046
86
Continue the story: As Nebulas spin, the gas and dust reach extreme temperatures, evolving into the next phase, a...
Main sequence
Protostar
Dwarf star
A youthful star
87
The Solar Nebula Theory hypothesizes the formation of our Solar System. The first stage is a Nebula, a...
Collection of gas dust
Collection of planets
Collection of dark matter
Collection of stars
88
Unit 5: Textbook - Select the characteristic that does not apply to a Maria
Made of basalt, derived from lava (and furtherly, derived from Earth/Theia)
Latin for "seas"
Has many craters
Darker coloured
89
What does "charging by friction" refer to?
Rubbing two objects together
Putting two objects close to each other (but not directly touching)
Touching two objects together
90
What is "current"?
The controlled flow of electrons through a conductor
The rate of electron flow
The movement of electrons
91
When an object is moving away from us, this is known as...
Whiteshift
The Doppler Effect
Redshift
Blueshift
92
Galaxies are collections of celestial objects, including asteroids and planets. Galaxies are an example of...
A heliocentric system
A geocentric system
93
What is the name of the North Star?
Pyxis
Ursa Minor
Polaris
Regulus
94
Birds have special rubber in their feet that prevent them getting shocked by electric wires
False
True
95
What are two elements are stars created of?
92% hydrogen and 7.8% carbon
92% hydrogen and 7.8% helium
92% hydrogen and 7.8% phosphorus
92% hydrogen and 7.8% lithium
96
Continue the story: This is bad for the ecosystem because it blocks the sunlight for plants to grow. As plants die...
The algae also starts dying
Fish begin to die due to the lack of oxygen
A safe environment for public swimming is created
Fish thrive as placement for coral provides habitat and food
97
What doesn't make a community sustainable?
Breeding more primary consumers and killing predators
Not overhunting
Adding pollenators and insects into the community
98
What's the difference between an ionic bond, molecular bond, and a covalent bond?
Covalent bonds share electrons
Molecular bonds share electrons
Covalent bonds take/give electrons to one another
Ionic bonds take/give electrons to one another
99
Carbon emissions far outweigh Carbon captures
True
False

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