Download Station 1- The Metalloids Info

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Monday, April 22, 2013
Station 1- The Metalloids
Info: The metalloids have properties of BOTH metals and non-metals. On the periodic table, the
metalloids are found between the transition metals and the non-metals. Metalloids are poor
conductors of electricity. They are dull in appearance (no luster) and can crumble (brittle) pretty
easily (not malleable or ductile). Metalloids are important, however, because all computers use
metalloids to carefully control operations inside them (microchips)! Examples of metalloids
include: Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Astatine, and Polonium (P)
(find ‘em!).
Reading Comprehension
1. What properties of metals do metalloids have?
2. What properties of non-metals do metalloids have?
3. If an unknown metal is shiny but a poor conductor of electricity, you can conclude
that it is a _____________________.
Quiz Time!!! 1. What are metalloids?
a.
b.
c.
d.
The metal elements with small atomic numbers
The elements between metals and nonmetals on the periodic table
Chunks of metal ore
Nonreactive metal elements
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Monday, April 22, 2013
Station 2- Science Lab Equipment – Draw each lab equipment, label and identify!!
Spring Scale
Flask- Measurement of Liquids, used especially if the liquid(s) is/ are to be mixed.
Beaker- Standard Measurement of Liquids
Wash Bottle- Used to clean glass equipment
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Monday, April 22, 2013
Bottle- Storage of Liquids
Spring Scale—Used to measure an object in Newtons. Used in Physics.
Station 3--Interpreting Molecular Diagrams
The picture below is known as a molecular diagram. A molecular diagram
shows the arrangement of elements in relation to each other.
Draw me!!
1. How many Carbon atoms are in this molecule? _______
2. How many Hydrogen atoms are in this molecule? ______
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Monday, April 22, 2013
3. Write the molecular formula as a chemical formula: _______________
Station 4- Punnett Square Practice- Construct a Punnett Square based upon
the following information below:
A heterozygous male (T) mates with a homozygous recessive female (t). What
percent of offspring will exhibit the dominant trait?
T= black fur
t= white fur
1. Dominant trait ______%
2. What percent of offspring will be gray? ________%
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Monday, April 22, 2013
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Name: __________________________ Date: ___________ HR: _____________________
NOTES
“Don’t front, Weathah Man!” - Weather Fronts
An air mass is a large body of air that has properties similar to the part of Earth’s surface over which it develops. For example, an air mass that
develops over land is dry compared with one that develops over water. An air mass that develops in the tropics is warmer than one that
develops over northern regions. An air mass can cover thousands of square kilometers. When you observe a change in the weather from one
day to the next, it is due to the movement of air masses.
Atmospheric pressure varies over Earth’s surface. You may have heard a meteorologist on the news talk about high- and low-pressure systems.
Remember that winds blow from areas of high pressure to areas of low pressure. As winds blow into a low-pressure area in the northern
hemisphere, Earth’s rotation causes these winds to swirl in a counterclockwise direction. Large, swirling areas of low pressure are called cyclones
or hurricanes and are associated with storm weather.
Winds blow away from a center of high pressure. Earth’s rotation causes these winds to spiral clockwise in the northern hemisphere. Highpressure areas are associated with fair weather and are called anticyclones. Variation in atmospheric pressure affects the weather. Low pressure
systems at Earth’s surface are regions of rising air. Areas of low pressure usually have cloudy weather.
Consider what you learned about what happens to warm air when it rises higher into the atmosphere and gets cold. How does this explain
why low pressure systems develop clouds?
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Sinking motion in high-pressure air masses makes it difficult for air to rise and clouds to form. That’s why high pressure usually means good
weather.
Why do high-pressure air masses sink?
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Monday, April 22, 2013
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A boundary between two air masses of different density, moisture or temperature is
Cloudiness, precipitation, and storms sometimes occur around the edges of fronts.
include cold, warm, and stationary.
called a front.
Three types of fronts
A cold front, shown on a map as a blue line with triangles, occurs when colder air
warm air. The cold air wedges under the warm air. As the warm air is lifted, it cools
condenses, forming clouds. When the temperature difference between the cold air
large, thunderstorms and even tornadoes may form.
advances toward
and water vapor
and warm air is
What is the effect of the mixing of cold and warm air?
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Why do clouds form when the warm air mass is lifted away from Earth’s surface?
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Warm fronts form when lighter, warmer air advances over heavier, colder air. A warm front is drawn on weather maps as a red line with red
semicircles.
Odd Science!!
Monday, April 22, 2013
So which is which???