Plastics quiz
3 questions. No signup. Your move.
What does the number inside the triangle on plastic items mean?
Now make it a duel.
Play more questions on Plastics in LearnClash. Challenge friends in a new quiz duel.
Play more in the appA tap copies this page’s link so the app can pick up where you left off.
That was every question in this preview. Pick another topic or keep going in the app.
A new quiz every day: Today’s quiz
The video couldn’t load. You can watch it on YouTube.
Choose a topic, answer questions and challenge a friend in LearnClash.
Watch on YouTubeA tap copies this page’s link so the app can pick up where you left off.
More questions about Plastics
These visible examples show the question style. LearnClash turns the full topic into ranked duels and spaced repetition.
-
What does the Greek root of 'plastic' mean?
Answer: Moldable
Why: The term plastic surgery, recorded by 1839, refers to reshaping tissue and is older than plastic the material.
-
Why is HDPE denser than LDPE?
Answer: Fewer side branches
Why: LDPE is the one made at very high pressure, while the denser HDPE comes from low-pressure catalyst processes.
-
What was 46% of the Pacific garbage patch's mass, per a 2018 study?
Answer: Fishing nets
Why: Microplastics made up about 94% of the patch's pieces but only about 8% of its mass.
-
Why are most paper coffee cups hard to recycle?
Answer: Polyethylene lining
Why: The same thin polyethylene film that waterproofs the board also welds the cup's seams together.
-
How big can a microplastic be at most?
Answer: 5 mm
Why: NOAA puts the 5 mm limit at about the size of a pencil eraser.
-
What did plastic splinters in WWII pilots' eyes inspire?
Answer: Lens implants
Why: Acrylic splinters caused none of the inflammatory rejection that glass splinters did, so the eye could tolerate the plastic.
Keep going in the app
A tap copies this page’s link so the app can pick up where you left off.
