Tiny but Mighty
Convert 2.5 L to mL.
2,500 mL
Write 45,000 in scientific notation.
4.5 × 10⁴
You pipette 100 µL of buffer. Express in L.
0.0001L or 1.0 × 10⁻⁴ L
A student writes that 0.05 L = 0.05 mL. What’s wrong?
Forgot to convert — it’s actually 50 mL, not 0.05 mL.
In the Harry Potter series, which Hogwarts house did Hermione Granger belong to?
Gryffindor
Convert 750 µL to mL.
0.75 mL
Write 0.00092 in scientific notation.
9.2 × 10⁻⁴
A plasmid prep yields 3.2 × 10⁻⁵ g of DNA. Express in µg.
32 µg or 3.2x 101
A student reports 1.0 × 10⁶ L of DNA sample. What’s wrong?
Unit size is unreasonable — DNA samples are µL, not L.
What planet is Luke Skywalker’s home planet in Star Wars?
Tatooine
Convert 4.2 × 10⁻³ L to µL.
4,200 ul
Multiply: (3.0 × 10³) × (2.0 × 10²)
Give your answer in scientific notation
6.0 × 10⁵
Your culture contains 2.5 × 10⁷ cells/mL. How many in 2 mL?
5.0 × 10⁷ cells or 50,000,000
A student records 2.0 × 10⁻⁶ mL as 2.0 µL. Is this correct? Explain.
No — it should be 0.002 µL (2.0 × 10⁻³ µL).
In the Marvel Cinematic Universe, which superhero is also known as the “God of Thunder”?
Thor
Convert 0.0056 g to mg.
5.6 mg
Divide: (6.0 × 10⁶) ÷ (2.0 × 10³) (SN)
3.0 × 10³
A DNA sample has a concentration of 4.5 × 10⁻³ g/mL.
What is this concentration in milligrams per milliliter (mg/mL)?
4.5 × 10⁻³ g/mL × 1,000 = 4.5 mg/mL
A student converts 0.0045 g to µg as 4.5 µg. Is this correct? Explain.
No — correct answer is 4.5 × 10³ µg (4500 µg).
Who holds the record for most watched Superbowl Halftime Show?
Kendrick Lamar
Convert 6.0 × 10⁵ cm to mm
6,000,000
Convert 5.63 × 10⁻⁴ g to µg and express in scientific notation.
5.63 × 10² µg (or 563 µg)
A centrifuge spins at 1.2 × 10⁴ revolutions per minute (rpm).
How many revolutions does it make in 45 seconds?
Express your answer in scientific notation.
Step 1: Convert 45 seconds to minutes
45 s × (1 min / 60 s) = 0.75 min
Step 2: Multiply by revolutions per minute
(1.2 × 10⁴ rev/min) × (0.75 min)
= 9.0 × 10³ revolutions
When creating micropipette art, a student calculates that their 96 well plate weighs 14,400 uL. Is this realistic? Explain why or why not.
What flavor of Pop-Tarts does Buddy the Elf use in his spaghetti in Elf?
Chocolate