Term
26
FE
Iron
56
What is the Atomic mass? |
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40
Zr
Zirconium
91
What is the Atomic number? |
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78
Pt
Platinum
795
How many neutrons are there in Platinum? |
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| A ____ is a rod or plank that pivots about a fixed point |
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| A clump of grass, a small bush, or a rock can act as the obstacle around which a _____ will start to form |
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| A firecracker that has not been lit is an example of ____ |
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| A foot kicking a football is an example of ____ |
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| A force is exerted on a box and an equal and opposite force isexerted by the box. What explains this? |
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| A moving skateboard is an example of _____ |
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| A person in a head-on car collision who is not wering a seat belt continues to move forward at the original speed of the car because of ___ |
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| A rock at the edge of a cliff is an example of ___ |
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| A rock sitting on top of a cliff has ___. |
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| A running man is an example of _____ |
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| An advantage of nuclear energy is that ____ |
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| it does not contribute to air pollution |
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| As the temperature of a material increases, the averge ___ of its particles also increases |
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| Asteroids, the Sun, planets, comets, and other objects form the ___ |
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| Depressions on the Moon formed by large meteorites are called ____ |
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| During an equinox, the Sun is directly above Earth's ___ |
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| Earth spins on its axis, and one rotation takes about one _____. |
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| For an ideal machine, the work in is equal to _____ |
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| Force is measured in which units? |
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| Ice wedging is brought about by _____ |
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| water freezing and thawing |
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| In general, metals are ___ |
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| It takes the Moon the same amount of time to orbit Earth once as it does to rotate ____ on its axis. |
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| Minerals found in the B horizon were dissolved in water and carried there by a process called ___ |
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| Most air pollution results from ____ |
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| the burning of fossil fuels |
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| Most likely, ____ were formed when lava from the Moon's interior flooded bowl-like regions on the Moon's surface |
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| Newton's first law of motion states that an object stays at rest unless an ____ acts on it |
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| Oxidation occurs when materials containing ____ are exposed to oxygen and water |
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| Plants cannot grow without |
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| Soil is a mixture of wethered rock, mineral fragments, water, air and ___ |
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| lighter than the A horizon |
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| The aability of an apple to change color when exposed to air is a _____. |
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| The difference between mechanical and chemical weathering is ____ |
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| the way they affect the makeup of a rock |
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| The layer of soil that contains the most organic material is called the _____ horizon |
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| The longest day of the year in the northern hemisphere is the ____ |
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| The rock and mineral fragments in soil come from rock that has been ____ |
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| The three R's of conservation are ___ |
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| Three examples of physical changes are _____ |
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| melting ice, mowing the lawn, carving a statue |
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| To produce hydroelectric power, _____ is needed. |
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| Vegetable soup is an exaple of a _____ |
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| Weathering that is the result of leaves decaying in the forest |
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| Weathering that is the result of the oxidation of minerals that contain iron |
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| Weathering that is the result of tree roots cracking the concrete sidewalk |
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| Weathering that results from acids from plant roots that break up rocks |
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| Weathering that results from the repeated freezing and thawing of water that cracks rock |
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| What can cause acid precipitation? |
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| What group number would you find Noble Gases in? |
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| What is the freezing point of water on the Celsius temperature scale? |
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| What is the term for speed at any instant in time? |
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| When a chunk of dry ice is at room temperature, a cloud of carbon dioxide vapor forms. The carbon dioxide is changing from a ____ |
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| When farmers leave plant stalks in the field to reduce soil erosion, it is called ___ |
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| When people plant vegetation, they ____ erosion |
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| When the Sun, the Moon, and ___ line up, a lunar eclipse occurs. |
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| Where is the chemical energy in a material stored? |
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Which describes how velocity changes with time?
a. average speed
b. acceleration
c. inertia |
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Which of the following is NOT a possible sign of a physical change?
a. change in color
b. change in volume
c. release of energy |
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Which of these statements about matter is NOT true?
a. During chemcial changes, matter is destroyed
b. Matter is made up of atoms
c. Matter has mass and takes up space |
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| During chemical changes, matter is destroyed |
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| Which statement describes the flow of heat? |
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| Energy moves from a warmer object to a cooler object |
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| ____ occurs when glacial ice melts and the water flows down into cracks in rocks, refreezes, and fractures the rock into pieces |
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| _____ can be compared to sandblasting |
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| _____ forms when sediments are blown against an obstacle and settle behind it |
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| _____ is done only when an object moves in the diretion of the applied force |
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