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The Storm-Damaged Scoreboard Water Model

Graph Earth's salt and fresh water amounts, compare scaled models, and judge whether a storm-field display shows the distribution fairly.

Grade 5ScienceInteractive · Printable

Aligned to5-ESS2-2

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What’s included

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

Details

Format: Interactive · Printable
Grade: Grade 5
Subject: Science
Question types: Fill in the blank, Multiple choice, Circle the answer, Sorting, Short answer, Drawing

About this worksheet

What students practice

Students graph the amounts of salt water and fresh water on Earth.
Students compare scaled models to judge whether they show Earth's water distribution accurately.
Students use numerical evidence to explain what a water-distribution graph shows.

How to use

Read the field team's notes together, then have students graph the reference model before judging the proposed scoreboard designs.

Curriculum

NGSS standard covered

5-ESS2-2

Graph the amounts of salt water and fresh water on Earth to show how water is distributed.

Preview

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Name Date

The Storm-Damaged Scoreboard Water Model

Judge a field display by graphing Earth's water distribution.

Read the field team's notes

After a storm, the scoreboard near a sports field was damaged. The field team wants to replace it with a science display. Read the numbered notes and use the data to answer the questions.

Notes from the storm-field team

1The team is making a model of all the water on Earth. Their reference estimate divides the whole amount into 100 equal units. About 97.5 units are salt water, and about 2.5 units are fresh water. These amounts include water in all places on Earth, not just water found near the sports field.

2The team wants to use whole counters, so it tests a model with 200 equal counters. In that model, 195 counters stand for salt water and 5 counters stand for fresh water. The team tests three scoreboard layouts. The blue layout uses 195 salt-water counters and 5 fresh-water counters. The orange layout uses 190 salt-water counters and 10 fresh-water counters. The green layout uses 98 salt-water counters and 2 fresh-water counters.

3A fair bar graph for the display should use one shared amount scale for both bars. It should name the two kinds of water, show the units being counted, and make the bars start at zero. The team will choose a layout that keeps the numerical comparison clear.

Which pair gives the reference amounts for 100 equal units of Earth's water?