Gradual Graph Reveal
Reveal a graph step by step to build observation and discussion.
Start the Reveal →
© Virtual Science Teachers. All rights reserved.
What do you notice about the lengths of the bars? What might the different lengths represent?
Discussion Question
Each bar now has numbers at the ends. What do you think these numbers might represent?
Discussion Question
The x-axis shows frequency in hertz (Hz). What kinds of things might have different frequencies?
Discussion Question
If this graph is about hearing, what might the bars be comparing?
Discussion Question
Background Information
Which animals can hear higher-frequency sounds than humans?
Discussion Question
Background Information
Different animals can hear different ranges of sound frequencies. Hearing is an adaptation- a trait that helps an animal survive in its environment. Why might high-frequency hearing be helpful? Some animals, including bats and porpoises, use echolocation. Echolocation is when an animal makes sounds and listens to the echoes to locate objects. Echolocation works best with high-frequency sounds because high frequencies have shorter wavelengths, which can detect small objects and fine details. Why might low-frequency hearing be helpful? Low-frequency sounds travel farther and can bend around obstacles, which helps animals like baleen whales communicate across long distances in the ocean and animals like elephants stay in contact over wide areas on land. These low sounds can also help them detect large events in their environment, such as distant movement or storms. How animals use sound (adaptations): Animals use sound for communication, finding food, avoiding predators, and navigation (including echolocation).
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20 Hz
20000 Hz
GGR Hearing Frequencies
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Created on March 14, 2026
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Transcript
Gradual Graph Reveal
Reveal a graph step by step to build observation and discussion.
Start the Reveal →
© Virtual Science Teachers. All rights reserved.
What do you notice about the lengths of the bars? What might the different lengths represent?
Discussion Question
Each bar now has numbers at the ends. What do you think these numbers might represent?
Discussion Question
The x-axis shows frequency in hertz (Hz). What kinds of things might have different frequencies?
Discussion Question
If this graph is about hearing, what might the bars be comparing?
Discussion Question
Background Information
Which animals can hear higher-frequency sounds than humans?
Discussion Question
Background Information
Different animals can hear different ranges of sound frequencies. Hearing is an adaptation- a trait that helps an animal survive in its environment. Why might high-frequency hearing be helpful? Some animals, including bats and porpoises, use echolocation. Echolocation is when an animal makes sounds and listens to the echoes to locate objects. Echolocation works best with high-frequency sounds because high frequencies have shorter wavelengths, which can detect small objects and fine details. Why might low-frequency hearing be helpful? Low-frequency sounds travel farther and can bend around obstacles, which helps animals like baleen whales communicate across long distances in the ocean and animals like elephants stay in contact over wide areas on land. These low sounds can also help them detect large events in their environment, such as distant movement or storms. How animals use sound (adaptations): Animals use sound for communication, finding food, avoiding predators, and navigation (including echolocation).
0 Hz
20 Hz
20000 Hz