WorksheetPremium

Two Floats in the Aquarium Wave Lab

Compare two aquarium wave-tank floats using height measurements, repeated motion patterns, and evidence-based predictions.

Grade 3ScienceInteractive · Printable

Aligned to3-PS2-2

Buy this worksheet: $1.50

Or unlock every Premium worksheet with Premium

PrintUnlock to print

Answer keyUnlock to see answers

Assign to classUnlock to assign with a class code

What’s included

Single worksheet
Auto-graded online
1 NGSS standard
Printable answer key
13 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 3
Subject: Science
Question types: Fill in the blank, Multiple choice, Circle the answer, Short answer

About this worksheet

What students practice

Students compare changes in two objects' measured heights at equal time intervals.
Students identify repeating motion patterns and predict later positions.
Students support motion predictions with evidence from repeated observations.

How to use

Read the wave-lab passage together. Have students trace each float's height changes before answering, then explain how repeated measurements support their predictions.

Curriculum

NGSS standard covered

3-PS2-2

Observe and measure an object's motion to find a pattern that predicts how it will move next.

Preview

OwlSheets.com

Name Date

Two Floats in the Aquarium Wave Lab

Compare measured motions and use patterns to predict what comes next.

Compare the First Measurements

Read about the wave lab. Use both graphs to compare the floats. Each bar shows a height, not a distance traveled.

Watching the Wave Tanks

An aquarium has two small model wave tanks in its learning lab. Each tank holds a foam float. The floats are alike, but the machines making waves have different settings. A loose guide keeps each float beside a ruler while letting it move up and down. The ruler measures the float's height in centimeters above the tank bottom.

The junior science club watches Float A and Float B. An adult runs the machines. Club members keep their hands outside the tanks. They start a timer and read the bottom edge of each float every two seconds. They use the same rulers, the same measuring edge, and the same tank-bottom starting point for each reading. Neither machine's setting changes during the observations.

The graphs show the club's first six readings. The club also watches between readings: each float moves smoothly up or down, without extra turns between the recorded times. Later, the club collects more readings to check whether the motions repeat. Predictions on this sheet assume the machines keep running at the same settings.