Part A Complete these steps for each material listed in the table. Record your findings in the table.
1. Describe the appearance of the material. Include its color and state (solid or liquid).
2. Pour 14 cup of water into a small, clear container. Measure 14 teaspoon of the material, and carefully
pour it into the container. Look at the side of the container as you pour in the material. Decide
whether the material is less dense or more dense than water by observing whether the material
floats or sinks.
3. Swirl the container to see whether the material mixes with the water.
4. Rinse and dry the container and the measuring spoon after each use.
B
1
U
x?
X
Font Sizes
A
AM
E 2E 3
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Material
Appearance of the material,
including its color and state
Is the material less dense or
more dense than water?
Does the material dissolve in
(mix with) water?
baking soda
baking powder
salt
sugar
white flour
white vinegar
oil (any kind

-first use of geothermal energy occurred more than 10,000 years ago in north america by american paleo-indians

-the first industrial use of geothermal energy began near pisa, italy in late 18th century

-in 1904, italian scientist piero ginori conti invented the first geothermal electric power plant in which steam was used to generate the power

-with the above experiment, the first geothermal plant in usa started in 1922 with a capacity of 250 kilowatts

-however, in 1946 first ground-source geothermal heat pump installed at commonwealth building in portland, oregon

-during the 1960’s, pacific gas and electric began operation of first large scale geothermal power plant in san francisco, producing 11 megawatts

-in 1973, when oil crisis began many countries began looking for renewable energy sources and by 1980’s geothermal heat pumps (ghp) started gaining popularity in order to reduce heating and cooling costs

-as effect of climate change started showing results, governments of various countries joined hands to fight against it, for which kyoto protocol was signed in japan in 1997, laid out emission targets for rich countries and required that they transfer funds and technology to developing countries, 184 countries have ratified it

hope this

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods