Scientific Measurements & Lab Safety

You are tasked with heating water in a glass beaker on a hot plate. Would you have to wear goggles?

• No because chemicals are not being used

• Yes because heat and glassware are being used

What piece of lab equipment is shown?

• beaker tongs

• crucible tongs

• forceps

What piece of lab equipment would you use to measure the volume of a liquid?

• Beaker

• Erlenmeyer flask

• Graduated cylinder

• Test tube

T/F: All chemicals can be rinsed down the drain after a lab experiment

• True

• False

T/F: Glass will change colors when heated, so it is easy to tell the different between cool glass and hot glass

• True

• False

What piece of lab equipment is pictured?

• Pipet

• Test tube

• Scoopula

• Glass stir rod

How many seconds do you spend sleeping on the weekend if you sleep for 20. hours?

• 0.0056 sec

• 0.33 sec

• 1,200 sec

• 72,000 sec

How many hours are in 3,000 seconds?

• 0.8 hrs

• 50 hrs

• 180,000 hrs

• 10,800,000 hrs

How many meters are in 32 cm?

• 320 m

• 3.2 m

• 0.32 m

How many milligrams are in 0.022 grams?

• 0.22 mg

• 2.2 mg

• 22 mg

• 220 mg