Science Quiz For Grade 12
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Science Quiz For Grade 12 Instructions:
- This online quiz consists of 30 multiple choice questions
- Clicking the lets play button on this page will start your online game when you open it
- After starting the online quiz, the answers will change
- Practice it again and again if you want good grades
- Your scores and remarks are provided at the end of the quiz
- Any incorrect question or option in the quiz will be reported in the comments, so our team will correct it once.
- Question of
What is the functional unit of kidney?
- Hepatitis
- Vein
- Neuron
- Nephron
- Question of
What is the force per unit area?
- Force
- Impulse
- Density
- Pressure
- Question of
What part of brain controls sneezing?
- Cerebrum
- Cerebellum
- Hypothalamus
- Brain Stem
- Question of
Which of these gases is used in welding?
- Propyne
- Butane
- Methane
- Oxy-acetylene
- Question of
Which of these organs aid in urine production?
- Heart
- Brain
- Kidney
- Lung
- Question of
Property of membranes that allows some substances to pass across, while others cannot is called as
- Selectively Permeable
- Vacuole
- Trait
- Stimulus
- Question of
The study of how people use tools to perform work and how people physically relate to their working environment is called:
- Engineering
- Ergonomics
- Agronomy
- Physiology
- Question of
It refers to a shaking of the ground caused by a sudden release of energy in the earth’s crust.
- Tsunami
- Earthquake
- Question of
Oil, natural gas and coal are examples of …
- Biofuels
- Fossil fuels
- Renewable resources
- 2.4rad/s2
- Geothermal resources
- Question of
Which of the following changes to the design of this study would most improve the ability to test if the new medication effectively treats ear infections?
- Create a second group of participants with ear infections who do not use any ear drops
- Have participants use ear drops for only one week
- Have participants put ear drops in both their infected ear and healthy ear
- Create a second group of participants with ear infections who use 15 drops a day
- Question of
Which of the following is an example of genetic engineering?
- Finding the sequences of bases in plant DNA
- Attaching the root of one type of plant to the stem of another type of plant
- Inserting a gene into plants that makes them resistant to insects
- Growing a whole plant from a single cell
- Question of
What is the main cause of seasons on the Earth?
- The speed that the Earth rotates around the sun
- Changes in the amount of energy coming from the sun
- The distance between the Earth and the sun
- The tilt of the Earth’s axis in relation to the sun
- Question of
These graphs show the monthly precipitation and average temperature for three cities in the United States over the course of one year. Based on the graphs, which city has the greatest annual range of temperatures?
- Chicago, Illinois
- New York, New York
- Los Angeles, California
- They all have the same annual temperature range
- Question of
This explanation is a scientific …
- Conclusion
- Conclusion
- Observation
- Hypothesis
- Question of
Many diseases have an incubation period. Which of the following best describes what an incubation period is?
- The recovery period after being sick
- The period during which someone builds up immunity to a disease
- The period during which someone has an infection, but is not showing symptoms
- The effect of a disease on babies
- Question of
When large areas of forest are removed so land can be converted for other uses, such as farming, which of the following occurs?
- Decreased carbon dioxide
- Greater oxygen production
- Colder temperature
- Increased erosion
- Question of
An antacid relieves an overly acidic stomach because the main components of antacids are …
- Neutral
- Bases
- Acids
- Isotopes
- Question of
Which of these is a major concern about the overuse of antibiotics?
- It can lead to antibiotic-resistant bacteria
- There will be an antibiotic shortage
- Antibiotics can cause secondary infections
- Antibiotics will get into the water system
- Question of
A car travels at a constant speed of 40 miles per hour. How far does the car travel in 45 minutes?
- Yes
- No
- 35 miles
- 40 miles
- Question of
Parallel currents repel, and anti-parallel currents attract.
- True
- False
- Question of
CRTused in television and computer monitors which work on the principle of vacuum tubes are being replaced by LCDmonitors with supporting Liquid stateelectronics.
- True
- False
- Question of
Insulators have ————
- Low conductivity
- Both B & C
- Low resistivity
- High conductance
- Question of
The difference is often called the ________ of the circuit
- Boundwidth
- Brandwidth
- Bindwidth
- Bandwidth
- Question of
Which one uf the following is compound semiconductors?
- PIn
- S
- Combinedly both B & C
- Cd
- Question of
A set of equations involving magnetic field, and their sources, the charge and current densities are known as Maxwell’s equations.
- True
- False
- Question of
“If there is some gap between the conduction band and the valence band,the material is an/a —————-“
- Insulator
- Semiconductors
- Conductor
- Non-insulator
- Question of
Which band is completely empty at absolute zero?
- Conduction
- A & B
- A or B
- Valence
- Question of
Light is an ———— wave.
- Short distance wave
- Radio wave
- Invisible wave
- Electromagnetic
- Question of
Maxwell showed,a changing electric field must also produce a magnetic flux.
- True
- False
- Question of
The current carried by conductors due to flow of charges is called ———– current.
- Yes
- No
- Conduction
- Conducted