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Science

Did you know the GED® Science test has a 90% pass rate? You have a very good chance of succeeding if you have a basic understanding of scientific concepts and how they work.

Try a Sample Question

An enzyme called pectinase is used by the fruit juice industry to increase the yield obtained during the juice extraction process. A researcher is investigating the effectiveness of pectinase by using the procedure shown here.

  1. Label two beakers A and B.
  2. Add 50g of chopped apple to each beaker.
  3. Add 4 milliliters (mL) of prepared pectinase solution to beaker A.
  4. Add 4 mL of distilled water to beaker B.
  5. Stir the contents of both beakers.
  6. Allow the beakers to remain undisturbed for 30 minutes.
  7. Filter out the solids and measure the juice in each beaker.

 

What is the dependent variable?

What is the dependent variable?