WONDER #1927: How Do Trees Make Sap?

Question 1 of 3

When temperatures drop below freezing, what kind of pressure develops within a tree?

  1. positive
  2. negative
  3. neutral
  4. sapling

Question 2 of 3

It takes about how many gallons of sap to make one gallon of maple syrup?

  1. 1
  2. 10
  3. 20
  4. 40

Question 3 of 3

Sap moves through part of the outer tree trunk called what?

  1. sapwood
  2. barkley
  3. tunnelsap
  4. sapbark

Check your answers online at https://wonderopolis.org/index.php/wonder/how-do-trees-make-sap.