Ocean Chemistry and Coral Consumption

Ocean Chemistry and Coral Consumption

Assessment

Interactive Video

Biology, Chemistry, Science, Geography

5th - 8th Grade

Hard

Created by

Lucas Foster

FREE Resource

The video explains how bumphead parrotfish contribute to the formation of white sand beaches in the South Pacific by consuming coral and excreting it as sand. It also touches on the mystery of ocean salinity, highlighting that the understanding of its chemistry is a relatively recent development.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary contributor to the white sand on South Pacific beaches?

Volcanic ash

Bumphead parrotfish excrement

Crushed seashells

Eroded rock

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How much coral can a single bumphead parrotfish consume in a year?

1 ton

3 tons

5 tons

10 tons

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the coral after it is consumed by bumphead parrotfish?

It remains unchanged

It is turned into sand

It is digested and absorbed

It is excreted as liquid

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Until recently, what was the common response to why the ocean is salty?

A myth about sea creatures

An avoidance of the question

A detailed scientific explanation

A simple answer about salt deposits

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What aspect of the ocean's chemistry was not well understood until recently?

Its temperature

Its salinity

Its depth

Its biodiversity