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100
What is less dense than water?
Oil
100
Which two fluids surround our planet?
What are WATER and AIR
100
Margarine and shortening are made by bubbling hydrogen gas through liquid oils. TRUE or FALSE
What is TRUE
100
Fluids are volatile in that they have no fixed form. True of false?
What is TRUE
100
Dams control water flow. What else can they generate?
What is "electricity"
200
What is the best gas for a hot air balloon?
What is helium
200
When an oil spill occurs on a body of water, where does the oil go? Explain why.
What is "floats on top of water, as oil is less dense than water"
200
A fish rising to the surface is an example of what kind of buoyancy?
What is POSITIVE BUOYANCY
300
A vessel is more what in salt water than in fresh water
What is "buoyant".
300
What is an example of cohension?
What is "honey" or "maple syrup".
300
Fluids are...
What is "liquids and gases"
300
Particle Theory states that: "Particles attract each other". True or false?
True.
300
What is the secret to a Water Hyacinth's ability to float?
What are "AIR CHAMBERS in its stem"
400
Would the Plimsoll line indicate that a boat is more of less buoyant in fresh water?
What is "less buoyant"
400
What is the formula to calculate DENSITY?
What is MASS / VOLUME = DENSITY
400
Is the weight of a steel box the same on Earth as it is on the Moon? Why or why not.
No, it is not because weight is calculated with gravity. The Moon has very little gravity.
400
Is the mass of a steel beam the same on Earth as it is on the Moon?
Yes, indeed! Mass does not change!
400
A turbulent flow means that the flow is...
What is "not smooth, or choppy"
500
To find the VOLUME of a regular solid, your formula is...
What is "LENGTH x WIDTH x HEIGHT"
500
Hydrodynamics is concerned with what?
What is "how liquids move"
500
Milk that stays on the inside of a glass after you have drunk it, is an example of what?
What is "ADHESION"
500
Clogged arteries are an example of what?
What is "turbulent flow".
500
Which organs filters the blood and gets rid of waste and toxics?
What are the "kidneys"
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