This is the correct volume shown by the graduated cylinder.
What is 44.9 mL?
Convert 1 year into seconds.
31,536,000 seconds
1 year x 365 days x 24 hours x 60 minutes x 60 seconds
Convert 845,231 into scientific notation.
8.45231 x 105
An extensive property of matter _______ on the amount of matter present.
An extensive property of matter DOES depend on the amount of matter present (e.g. mass, volume, length, etc.)
The baseline to which you compare your experimental group is called the _____ group.
Control
273.15° K = ? °C
0°C
Convert 2 cups into microliters.
About 473,176 microliters.
Convert 0.0000756 into scientific notation.
7.56 x 10-5
Provide an example of a HOMOGENEOUS mixture.
Saltwater, air, steel, coffee, etc.
This piece of lab equipment is used to store liquids and is wider on the bottom than the top.
0.023404 has this ____ many significant figures.
Convert 12,345 mm into km.
0.012345 km
Convert 602,240,000,000,000,000,000,000 to scientific notation.
For a bonus point, what is the special name or use for this number? (Hint: It was discussed in one of our early EdPuzzles)
6.0224 x 1023
This is Avogadro's Number - it is the number of "things" in one mole. Remember, moles are a base unit of measurement for a HUGE quantity of stuff (like atoms).
Photosynthesis is an example of a(n) _______ change.
Photosynthesis formula:
6CO2 + 6H2O + Sunlight --> C6H12O6 + 6O2
Photosynthesis is an example of a CHEMICAL change.
Accurate
Convert 8.77 ks to s.
8,770 s
Convert 1234567 um to feet.
Approximately 4.055 feet
Convert 7.0523 x 107 to standard notation.
70,523,000
What are the simplest identifiable units of an element?
Atoms!
"The powder is brown" is an example of this type of data.
Qualitative data
Name the base SI units for:
Length
Mass
Volume
Time
Meters
Kilograms (you'd think grams would make more sense, but the SI system is based on kg for some reason)
Liters
Seconds
Convert 8 miles to meters.
Approximately 12874.8
Convert 3.221 x 10-5 to standard notation.
0.00003221
What are the similarities and differences between elements and compounds?
Elements and compounds are both pure substances.
Elements CANNOT be broken down into simpler substances, while compounds can be broken down (into elements or other compounds).
When using the RADAR method to solve a problem, what is the last thing you should do after your calculations are complete?
Reflect on your answer to see if it is reasonable & to see if the question has been answered.