Introduction of Chemistry

When handling hot glassware

• use gloves or tongs
• use hands
• you can tell it is hot by looking
• use ice

When should you use the shower in the stockroom?

• After P.E.
• After spilling chemicals onto your body
• Before going out on a date
• Never

What should you do if you break glass in the lab?

• Tell the teacher, sweep up the glass, and put it in the broken glass container
• Tell the teacher, sweep up the glass, and dump it into the garbage
• Pick up the glass with your hands
• Ignore it; the teacher will clean it up

Why should you clean all materials after working in the lab?

• Chemical residue left on the materials may affect later experiments or cause a chemical reaction
• Dirty classware may start to smell bad
• Some chemicals we use in labs may slowly dissolve glass, and if you leave them long enough holes will actually form
• Trick question - you actually don't need to wash your materials after lab as long as you remember to do it before lab next time. 

When should safety goggles be worn?

• at all times in the lab
• when you feel like it
• when chemicals could splash into your eyes OR when using glassware

Before leaving the lab you should always wash or sanitize your hands.

• True 
• False

I must follow all instructions, written and verbal, about the laboratory procedures given by the teacher.

• True
• False

Which one is not a Chemistry career?

• Lecturer

• Farmer

• Actuary

• Anesthetist

These chemicals are used in food processing except..

• Sodium chloride

• Sodium carbonate

• Carbon dioxide

• Sodium bicarbonate

Which of the following symbols represents an oxidizing agent?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-2