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Science 8 Final 2022 A1

Last updated over 3 years ago
63 questions
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What part is this?

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Name this part?

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Name this part?

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Name this part?

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Name this part?

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Name this part?

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Name this part?

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Name this part?

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A hazard symbol that is a red Octagonal shape means...

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Which of the following is considered a poor safety practice?

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Use the WHMIS symbols to answer the following question.

Symbol 4 above indicates ...

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Which of the following is not a homogeneous mixture?

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You are making a drink using drink crystals. Which statement below is correct?

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Solubility is the...

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Particles move the slowest in a...

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You are cleaning your bike and want to clean the bearings. They are covered in grease. The best substance to use to clean the bearings will be...

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A pipeline pig is a special unit operating in a pipeline to...

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A detergent is a substance that can remove dirt from different kinds of fabric. The cleaning agent in the detergent attaches itself to the dirt particles. It is called a/an...

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Syncrude originally used conveyor belts to move the oil sand from the mine to the processing plant, but it proved to be very expensive to continue operating in this way. They now use ...

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When comparing concentrations of different solutions, it is necessary to compare the
concentrations in the same volume. Which of the following solutions would have the highest
concentration?

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In a hydraulic lift model built by an apprentice (like the real one shown in the illustration below), a pedal is used to push down the large piston, while the small piston lifts up a load. The apprentice's model didn't work. What is wrong with it?

REAL HYDRAULIC LIFT

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Which is not a structural adaptation?

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Adaptation is a change in the organism that allows it to survive in its environment. There are two types of adaptations. Structural adaptations enable organisms to change their appearance, whereas, behavioral adaptations enable organisms to change their behavior. Which of the
following adaptations is behavioral?

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Darwin’s finches have different variations in bill size that account for their feeding pattern. A warbler-like finch long sharp pointed bill would have this type of bill because it eats ...

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The powerhouse of the cell (the part where energy is converted into the usable form) is called the...

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If a cell has chloroplasts, it is a/an ...

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Peristalsis in the alimentary canal is caused by the ...

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The largest organ in the human body is the skin, which is also called the Integumentary System. It has two functions, which are ...

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Organs work together to make a system or network that performs a specialized function. Plants have only two main systems. They are the ...

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Which statement is correctly associated with the circulatory system?

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Oxygen-rich air is drawn into the lungs through tube-like passageways called bronchi. The bronchi are lined with tough connective tissue in order to ...

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Capillaries have two adaptations for exchanging gases and nutrients: they are made of specialized epithelial tissue that is only one cell thick and they ...

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The liver is a very important organ in the excretory system. The function of this organ is to
convert a highly toxic substance into a less harmful substance. The highly toxic substance that is converted into urea in the excretory system is ...

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A neuron receives messages from small branches of the nerve cell called ...

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In the late 1700’s, Edward Jenner, an English country doctor, developed the first vaccine. The vaccine he developed made people immune to smallpox. This vaccine was ...

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Louis Pasteur was originally a chemist. His first great discovery was finding out what made beer and wine spoil. He discovered micro-organisms, floating in spoiled batches of beer and wine. The micro-organisms were ...

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A simple machine is called a simple machine because it is...

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Mechanical systems for transporting water were developed by Roman engineers thousands
of years ago. These systems supplied water to cities that were many kilometers from the water supply. The systems were known as ...

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A simple machine that converts rotational motion to linear motion is called ...

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The penny farthing was an early bicycle design that used only these types of simple machines ...

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Linkages and transmissions are parts of a system that perform a specific function. The function they perform is to ...

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A disadvantage of a wedge is...

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A gear train is a...

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Gears are used in combination, with the teeth of the gears interlocking, so when one moves the other moves as well. Effort can be applied to the first gear (24 teeth), with the resulting effect on the second gear (12 teeth) being a ...

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The mechanical advantage of a device refers to...

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What is the Mechanical Advantage of this pulley?

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You have a pulley system, which has an input force of 45 N and an output force of 245 N. What is the mechanical advantage?

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If a machine is only 30% efficient, it means that...

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How much work would a student do if he picked up an 80 N box up off the floor and carried it to a height of 1.0 m then carried it 20 m and placed it on a shelf 1.8 m above the floor? (W = F x d)

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Speed Ratio is calculated by dividing the ...

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The Mechanical Advantage of this Hydraulic lift is 10 N. What is the area of the output piston if the diameter of the input piston is 1.4 m?
Use this formula on ratios given the information in the question.

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Mechanical devices are evaluated so that the consumer who will use them can make a better choice. Another important reason to carefully evaluate a mechanical device is too...

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The church key was the first practical design for opening a can. It was a simple machine that multiplied the force needed to open the can. The simple machine it was designed after was the ...

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CSA is a non-government association that tests and approves a wide range of products to ensure they are safe for use by the consumer. CSA stands for ...

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Sometimes a new device is designed when someone who thinks there can be an easier way to do something makes an observation. An inventor observed a driver manually cleaning snow and ice off the windshield of a streetcar in freezing cold weather, this observation prompted the invention of this ...

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Improvements in robot technology came as a result of industry trying to ...

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The Precipitation and Temperature information in the table above identifies a Canadian city. From the data, you might be able to infer that this data represents the City of ...

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Your inference in the question above is based on the fact that ...

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A reservoir is...

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The term "water quality" is associated with drinking water. All the following are abiotic characteristics
associated with water quality except...

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Which of the following statements would be a result of hard water?

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Use the following information to answer the question.
Carbon dioxide dissolved in water is acidic. Bromothymol blue is an acid/base indicator. A contaminated water sample is placed into a container containing some bromothymol blue. Another sample of pure water is placed into a similar container containing bromothymol blue. Both
containers were sealed and allowed to remain at room temperature, undisturbed, and in a darkened container for 24 h.
What would be a valid prediction for this experiment?

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Distillation of water involves which of the following changes?