Are you a ninth-grader having a hard time with your science classes? Worry no more; our ' Grade 9 Science Quiz' is perfect for helping you revise everything we have covered. We ask you to attempt all the questions on the quiz. Let's see how clear you are on your class topics. Give this quiz a fair shot, and make sure to keep an eye out for more tests like this designed to help you pass the final exams. Do share the quiz with your friends. Good luck & keep studying!
When it has a full outer orbit.
When it has the same amount of electrons as protons.
When it has no neutrons.
When it has an odd number of valence electrons.
True
False
True
False
Ca-1 N-6 O-2
Ca-1 N-2 O-6
Ca-6 N-2 O-1
Ca-2 N-1 O-6
Change of color
Heat is produced
Smell is produced
Light is produced
Gas is produced
Solid is produced
H2O+oxygen (light+chlorophyll) = CO2+glucose
H2O+CO2 (light+chlorophyll) = oxygen+glucose
CO2+light (chlorophyll +water) = H2O+oxygen
Energy
Water
Oxygen
Glucose
Light
Competition
Mutualism
Equilibrium
Predation
Climate extremes
Disease
Predation
Biodiversity
Human disturbances
Competition
True
False
Bioamplification
Bioaccumulation
Biomagnification
True
False
True
False
True
False
True
False
Once a year
All year round
Never
Once in every 100 years
Draco
Aquarius
Ursa major
Little dipper
Leo
True
False
Cation
Anion
Onion
Electrons hate you
Electrons want to discharge
Protons jump to an opposite charged object
At a point
A spark
Friction
Moisture
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