2024 Practice Science STAAR

Front

What is a solar eclipse?

Back

A solar eclipse occurs when the moon moves between the sun and Earth, casting a shadow on Earth.

Front

What is the role of producers in an energy pyramid?

Back

Producers, like plants and phytoplankton, convert sunlight into energy, forming the base of the energy pyramid.

Front

Why does the sun appear brighter than other stars?

Back

The sun is closer to Earth than any other star, making it appear brighter.

Front

What is overfishing?

Back

Overfishing is the practice of catching fish at a rate faster than they can reproduce, leading to depletion of fish populations.

Front

What are trophic levels?

Back

Trophic levels are the hierarchical levels in an ecosystem, representing the flow of energy from producers to various levels of consumers.

Front

What is the Milky Way galaxy?

Back

The Milky Way galaxy is the galaxy that contains our solar system, along with billions of other stars.

Front

What is a light-year?

Back

A light-year is the distance that light travels in one year, approximately 5.88 trillion miles.

Front

What are stars?

Back

Stars are massive celestial bodies made of gas that produce light and heat through nuclear fusion.

Front

What is the significance of coral reefs?

Back

Coral reefs provide habitat for marine life, protect coastlines, and are vital for biodiversity.

Front

What is the new moon phase?

Back

The new moon phase is when the moon is positioned between the Earth and the sun, making it invisible from Earth.