Erlenmeyer flask / Mortar and pestle / Wire stripper, crimper, cutting tool
Florence flask / Multimeter / Germicidal Monitor
Rubber stopper / Soldering gun / O ring
Bell jar vacuum / Solder / Graduated Cylinder
Magnetic Stirrer / Flux paste / Ring Stand
Knife Switch / Resistors
Pipe clay triangle / LED
Test Ch. 1 Review
Write the word next to the definition that it represents.
1) kills bacteria on goggles between labs
2) laboratory device that uses a rotating magnetic field to cause a magnet to spin.
3) type of switch used to control the flow of electricity in a circuit.
4) clamps on a ring stand to support a beaker
5) Container used to hold liquids. It has a round body, single long neck, and a flat bottom.
6) heavy glass used so air may be pumped out
7) is a two-lead semiconducting light source
8) a circular concave piece of glass used in chemistry
9) These cannot be heated. We use either10ml, 25, 50ml, or 100ml sizes for our labs. Used to find the volume of liquids.
13) used to connect an electrical cable to a battery or some other component
15) supports an oring or test tube clamp, so a bunsen burner can be used.
16) A electrical component that gives electrical resistance as a circuit element.
17) used in chemical laboratory to seal off flasks and test tubes.
18) fusible metal alloy used to create a permanent bond between metal workpieces
20) measures voltage, current, and resistance
21) used to evaporate solutions
22) Used to hold liquids. It has a conical body, a single long neck, and a flat bottom.
23. Draw and label the metric conversion chart.
24. Use the table to convert the following
a) 24mm = cmb) 2.5kL = Lc) 15g = kg
25. How many centimeters are in 1 in.
26. Use the above information to complete the following.
3in = cm 4ft 5 in = m
27. Draw and fill in the density triangle.
28. What is the volume of 220g of an object with a density of55g/cm3?
Mass = Show work!!!
Volume =
Density =
29. 28.5gof ironisaddedtoa graduatedcylinder containing60mLof water. The water levelrises tothe 64mL mark,fromthisinformation,calculate thedensityof iron. Show work like above.
30. If rectangular piece of metal has a mass of 7140g then what is the density? What type of metal is it? Show work like above
31. Draw and label a picture of what heron’s fountain needs to look like to run correctly. Label what chemical should be in each beaker/flask. The chemicals were Phenolphthalein, vinegar, and sodium hydroxide
32. During the hand warmer lab Mr. Bleacher noticed some seams on the hand warmers were failing. He thought the sealing temperature of 315 degrees Fahrenheit may be too low and causing some of the failed seams. He figured if he raised the temperature, then the seams would seal stronger. This would lead to fewer failed seams. He set up an experiment to test this out. He sealed one side of 5 different hand warmers at different temperatures. A student would then be timed on how long it takes to pull the seam apart. Below is a chart of the results of a student (Mr. Tiny) pulling apart the seams and the time it took.
Temperature (F) / Time (sec)315 / 1.2
340 / 2.54
360 / 1
380 / .54
400 / .43
What is the problem –
What is the hypothesis-
What is the independent variable –
What is the dependent variable –
What should his conclusion be based on the information gathered in the table.
33. Anything on the hand warmer write up can be on the test. You will get it back to study from.