Loading
by BlastRoom
Trace synthetic materials to natural resources and evaluate their benefits and trade-offs.
#us_grade_7_science
20 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
A drink bottle is made from PET plastic. Which natural resource is commonly used to make PET?
A rain jacket uses nylon fibers made by reacting petroleum-based chemicals in a factory. What is the best description of the nylon?
A glass jar is made by melting a mined resource with soda ash and limestone at high heat. What natural resource supplies most of the glass?
A hospital uses lightweight plastic syringes that arrive sterile and sealed, but they are thrown away after one use. What evaluation uses the evidence?
A sweater is made from wool clipped from sheep, then washed, dyed, and spun into yarn in a factory. How should the wool be classified?
Synthetic fertilizer can increase corn yield, but rain can wash extra nitrate into lakes. What evaluation considers both effects?
Rayon cloth is made by chemically processing cellulose into new fibers. What natural resource usually provides the cellulose?
A fleece blanket is made from polyester, a polymer produced from petrochemicals. How should the polyester fleece be described?
Nylon fishing nets are strong and do not rot quickly, but lost nets can trap animals for years. What is the best evaluation?
HDPE plastic for a sports bottle is made from natural gas, and many other plastics are made from crude oil. What kind of resource are these sources?
A synthetic rubber tire is made from butadiene and styrene, chemicals most often made from a liquid fossil fuel pumped from underground. What natural resource is traced in this tire?
A cotton T-shirt is made from fibers that grew around seeds on cotton plants. What classification best fits the cotton fiber?
Concrete sidewalks last for decades, but making cement releases carbon dioxide during heating of limestone. Which evaluation matches the evidence?
A factory makes ammonia fertilizer by combining nitrogen with hydrogen from natural gas. What natural resource supplies the nitrogen?
A shirt made from polyester dries quickly and resists wrinkles, but washing releases tiny plastic fibers into wastewater. What evaluation is supported?
A leather belt is cut from animal hide and treated to resist decay. What classification best fits the leather?
A plastic food wrap keeps sandwiches from drying out, but it is hard to recycle when dirty. What evaluation uses both observations?
Polyvinyl chloride (PVC) pipe is made from vinyl chloride, which is produced from ethylene and chlorine. The ethylene often comes from a fossil fuel that is a gas. What resource is traced?
A synthetic pesticide lowers insect damage on crops, but tests find it also kills some pollinating insects nearby. What evaluation fits?
A phone case made from silicone rubber cushions drops and lasts a long time, but it uses energy to manufacture. What evaluation is most complete?
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
Chemical Reactions: Key Terms in Use
20 questions
