Cren El STAAR Science Review #2

Front

Tracking rainfall over a long period provides the most information about which characteristic of an area? Options: Climate, Temperature of one day, Weather, Type of Soil

Back

Climate

Front

Which substance is needed by plants to survive and is released into the environment by animals? Options: Oxygen, Sugar, Salt, Carbon Dioxide

Back

Carbon Dioxide

Front

When a powdered drink mix was added to water, the liquid turned orange. A student decided the taste was too strong, so he poured out half of the liquid and added more water. Which of the following most likely occurred when more water was added?

Back

The orange color became lighter.

Front

All of these are related to the formation of oil or natural gas EXCEPT-- decomposed animals, decayed plants, sedimentary rocks, active volcanoes

Back

active volcanoes

Front

How does the root system of a prickly pear cactus benefit the plant?

Back

By absorbing water and supporting the plant in loose, sandy soil.

Front

A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary?

Back

The metal pan conducts thermal energy.

Front

A student hiking in a rocky area on a mountain notices that wide, deep cracks have formed in some of the large rocks. Some of the cracks are so large that the rocks have broken apart. Which process most likely caused these rocks to crack and break?

Back

Water freezing and thawing

Front

What will most likely happen when prairie dogs are removed from an area? Options: The population of predators that eat prairie dogs will decrease, The population of plants that prairie dogs eat will decrease, The nutrients in the soil will increase, The number of underground tunnels will increase

Back

The population of predators that eat prairie dogs will decrease

Front

In a food chain, energy does NOT flow directly from---

Back

consumer to producer

Front

A student made a mixture using equal amounts of salt and pepper. The salt grains were the same as the pepper grains. What should the student do to most easily separate the pepper from the salt?

Back

Put the mixture in water and filter the pepper out of the water.