Among Utah, Arizona, and Colorado, which state suffered from drought the most?

Factful math: Grade 4th-6th

Math skills: Interpretation of 100% stacked bar graphs

Related Environmental issues: Water conservation

The Colorado River Basin has been in drought for the last 23 years.

Colorado River Basin (USGS)

Among three states that depend on the Colorado River for their water sources, which state suffered from drought the most on August 15, 2022?


Source: University of Nebraska-Lincoln, U.S. Drought Monitor

Note: Non-drought, moderate drought, and extreme drought were categorized using intensity index from the U.S. Drought Monitor.

Non-drought: None + D0 (abnormally dry)

Moderate drought: D1 (moderate drought) + D2 (severe drought)

Extreme drought: D3 (extreme drought) + D4 (exceptional drought)


How far can an Ornate box turtle move in 10 minutes?

Factful math: Grade 3rd-5th

Math skills: Speed

Related Environmental issues: Biodiversity / Deforestation

Ornate box turtles are endangered in northern United States including Wisconsin.

The average walking speed of a box turtle about 0.2mph. How far can a box turtle move in 10 minutes?

1 mile = 5280 feet

ANSWER 176 feet

0.2 mile = 5280 x 0.2 = 1056 feet






The objective of Factful Environmental Math Problems is to cultivate our young people’s skills to analyze and evaluate fact-based data for understanding our world, while improving their math skills and critical thinking skills.

With the rise of the Internet and new technology, building skills to analyze and evaluate fact-based data becomes increasingly important for our young people to prepare for this rapidly changing world. These skills minimize their chances of being brainwashed by false information and making uninformed decisions and ultimately help develop their critical thinking skills. (Read more)

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Published: March 26, 2020

Price: $6.25