Secret Codes and Signals Worksheets for 4th and 5th Grade

What your child practices

Curious about Secret Codes and Signals? These 6 worksheets give 4th and 5th grade students (Grades 4 to 5 in Canada) 59 questions to think through. In grades 3 to 5, science asks children to explain why things happen, not only what happens, and Secret Codes and Signals is a great place to practice that kind of thinking. It opens with a guided Learn and Practice page, moves on to a practice sheet and a review test, then finishes with two quick quizzes and a mixed review. Each sheet supports NGSS 4-PS4-3, covering waves, light and sound. In Canada it matches the BC curriculum for Grade 8. Answer keys sit on page 2 of each PDF, so checking takes seconds. After printing, the online version gives instant feedback and reads each question aloud.

Tips for parents

• Ask your child to explain the idea using a diagram or a quick sketch.
• Let your child predict an answer before reading, then check if the prediction held up.
• Connect Secret Codes and Signals to something at home: the kitchen, the yard or the sky tonight.