Fill in the missing word(s): When many monomers are joined together, they create ____________
Back
Card 8
Front
Why is poly(ethene) used to make plastic bags?
Back
Card 9
Front
How do you test for unsaturated oil?
Back
Card 10
Front
Fill in the missing word(s): Oils don't dissolve in water. They are ________
Back
Card 11
Front
Fill in the missing word(s): Scientists now accept Wegener's theory because they know the Earth's _______ and upper part of the mantle are cracked into tectonic plates.
Back
Card 12
Front
State two negative things that can happen at the boundaries between tectonic plates
