FAST PRACTICE

Sara uses balloons to investigate static electricity. Which of the following best explains what will happen when she brings two positively charged balloons close to each other?

• the balloons will move apart.

• one balloon will lose its charge.

• the balloons will come together.

• one balloon will gain a negative charge.

The stem is an important part of many plants. Which of the following is most similar to the role performed by the stem of a plant?

• an anchor holding a boat in place

• a snack company producing energy bars

• a colorful sign attracting people into a store

• an elevator transporting supplies from one floor to another

Roger collected four samples and wrote a description of how each was formed. Which of the following rocks that Roger collected is a metamorphic rock?

• formed from magma that cooled slowly

• formed from lava that cooled quickly

• formed by pressure and heat over time

• formed by pieces of rock cemented together

Mr. Washington mixed iron filings with sand. Then, he asked his students to separate the iron filing from the sand. Which of the following is the best tool to use to separate the iron filings from the sand?

• Hand Lens

• Test Tube

• Bar Magnet

• Eyedropper

Jenny measures the outside temperature as 16 degrees Celsius (°C), 61 degrees Fahrenheit (°F). She observes precipitation falling from the clouds in a solid form. What type of precipitation is Jenny most likely observing?

• hail

• rain

• sleet

• snow

Plants are classified according to their structures. The plant pictured below has simple tubes for transporting water.

In which group of plants would this plant be classified?

• spore-producing plants with many leaves

• plants that produce fruit on their leaves

• plants that carry seeds on their leaves

• flowering plants with many leaves

Erosion and weathering can both cause changes to the surface of Earth. Which of the following happens only because of erosion?

• Rocks form deep underground.

• Rocks become smooth and round.

• Rocks are broken apart into small pieces.

• Rocks are moved from one place to another.

Astronomers study many different kinds of objects in our Solar System. Which of the following best describes a difference between comets and asteroids.

• comets orbit planets, and most asteroids orbit the Sun.

• Comets are hot balls of gas, and asteroids are made mostly of ice.

• Comets are made mostly of ice, and asteroids are made mostly of rocks.

• Comets orbit the Sun between Mars and Jupiter, and asteroids form patterns in the sky

The organisms shown below live in or near bodies of water. Some are classified as vertebrates and some as invertebrates.

Which organism is classified as an invertebrate?

• crab

• fish

• manatee

• turtle

Which color of light provided the greatest amount of light energy according to the data in the table?

• red

• green

• blue

• white