GED Science practice test

Science takes 90 minutes with no break. It tests reading science texts, designing and interpreting experiments, and using numbers and graphs.

Time	90 minutes, no break
Content	Life science, physical science, and earth and space science
Skills	Reading for meaning, designing and interpreting experiments, using numbers and graphics
Calculator	On-screen calculator and a calculator reference sheet
Formulas	Given in the question when you need them

What the questions ask

Life science: cells, body systems, genetics, evolution and ecosystems.
Physical science: motion and forces, energy, waves, and matter and chemical reactions.
Earth and space science: Earth's systems, weather and climate, natural hazards and space.
Experiments: independent and dependent variables, controls, hypotheses and conclusions.

How to win marks

Most answers are in the text, table or graph. Learn the parts of an experiment until you can name them instantly, and check that a conclusion stays inside what was actually tested.

Try 3 questions

Question 1Multiple choice

A Punnett square for Pp crossed with pp: Pp, Pp, pp, pp.
Pp × pp	p	p
P	Pp	Pp
p	pp	pp

In pea plants, the allele for purple flowers (P) is dominant over the allele for white flowers (p). A plant with genotype Pp is crossed with a plant with genotype pp. What fraction of the offspring are expected to have white flowers?

Question 2Fill in the blank

A metal block has a mass of 54 grams and a volume of 20 cubic centimeters. What is its density, in grams per cubic centimeter? (Density = mass ÷ volume.)

Your answer

Question 3Multiple choice

A gardener notices that tomatoes near a fence seem to get more sunlight and grow larger. Which is a testable hypothesis?

Next step

Take the free diagnostic Start the free Science lesson

The GED test subjects on ged.com

Questions people ask

Do I need to memorize science facts for the GED?

Less than you might think. The test gives the formulas you need and focuses on reading science texts, experiments and graphs, though basic terms such as cell, energy and variable help a lot.

What is the hardest part of GED Science?

Many people find experiment questions hardest at first: telling the independent variable from the dependent one and judging which conclusion the data support.