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Vocabulary. Qualitative Versus Quantitative. Physical Or Chemical?. Experiments. Conserving Energy. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 500. 500. 500. 500. 500.
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Vocabulary Qualitative Versus Quantitative Physical Or Chemical? Experiments Conserving Energy 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500
Energy cannot be created or destroyed.Energy can be transformed or changed
-The ability to do work-Exists in many forms (heat, chemical, electrical, mechanical, and so on…)
Using your 5 senses to gather informationTwo types: quantitative and qualitative
Explain the meanings of the following three terms: conduction, convection, and radiation
Conduction-a way in which solids transfer heat (molecules “bump” into other molecules, movement causes heat)Convection- occurs when hot air rises above cooler air, heat in an object makes the molecules spread outRadiation- release of invisible heat rays from a fire or from the sun
The thermometer indicates that the liquid has a temperature of 32 degrees.
The objects in the basket were determined to have a circumference of ten centimeters.
Example: Crumpling or tearing paperPhysical or Chemical Change?
Heat energy given off by the flame of the burning candle was absorbed by the water in the kernel. The water turned to steam, expanded and caused the kernel to “POP.”
The gas created by the chemical reaction of the vinegar and baking soda caused the raisins to rise and fall. The gas is light pushing the raisins to the surface. The fact that the raisin moves up and down shows mechanical energy.
How do you know a chemical reaction happened between the copper chloride (blue powder) and the aluminum tin foil cup?
-Heat energy was given off (steam)-Aluminum fell to the bottom of the cup in small, shiny pieces (aluminum oxide) -Mixture of compounds “sizzled”
Was heat energy given off (felt hot) or taken in (felt cold) when we mixed calcium chloride and baking soda with phenol red solution “In the Bag?”
Which aluminum rod (small, medium, or large diameter) will transfer heat energy the fastest?
After natural resources are gone they are gone.Must begin to explore renewable energy sources to play an important role in the future of the world.
Burning lots of coal and oilsends smoke and other gases into the air
Solar power is generated from light from the Sun.Visible light is changed into electricity by a solar cell.
Nuclear energy involves fission and fusion. Explain the difference between the two terms.