Intro to Chemical Reactions
Interactive Video
•
Other
•
8th Grade
•
Practice Problem
•
Easy
Molly McLaughlin
Used 1+ times
FREE Resource
25 questions
Show all answers
1.
SLIDE QUESTION
30 sec • Ungraded
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT considered a chemical?
Lettuce
Sound
Water
Carbon Dioxide
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What makes chemical elements different from the traditional alphabet?
They are created by scientists only.
They are used to form sentences.
They are arranged randomly.
They are set by universal laws.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following elements was named in 2011 but created in the 1990s?
Gallium
Copernicium
Osmium
Silicon
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What two lessons did the speaker learn from his personal lab experiences regarding washing vials and paper towel dispensers?
Always wear gloves and safety glasses.
Never wash unfamiliar vials and do not punch paper towel dispensers.
Always work with a partner and avoid eating in the lab.
Keep hair tied back and wear closed-toe shoes.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of clothing is recommended for safety in a lab environment?
Short-sleeved shirts and sandals.
Long pants, closed-toe shoes, socks, and clothing covering the entire torso.
Muscle shirts and exposed midriffs.
Loose-fitting clothing with long, dangling sleeves.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was Dmitri Mendeleev's primary method for organizing elements in his periodic table?
By atomic weight
By their discovery date
By alphabetical order
By their color
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