STAAR Review

Four students were asked to complete a table for a science assignment. Each student selected one chemical element from each of four groups in the periodic table and then classified each element as a metal, a nonmetal, or a metalloid. Which table was completed correctly?

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Both the esophagus and the small intestine are involved in the digestion of food. The esophagus squeezes food into the stomach by wave-like muscle contractions. Peptidase enzymes in the small intestine break food molecules into smaller molecules. Which statement best describes changes to food during digestion?

• The muscle contractions result in physical changes, while the action of the peptidase results in chemical changes.

• The muscle contractions and the action of the peptidase both result only in physical changes.

• The muscle contractions result in chemical changes, while the action of the peptidase results in physical changes.

• The muscle contractions and the action of the peptidase both result only in chemical changes.

Tags

NGSS.MS-PS1-2

Which statement correctly describes the location and charge of the electrons in an atom?

• The electrons are inside the nucleus and have no charge.

• The electrons are outside the nucleus and have no charge.

• The electrons are inside the nucleus and have a negative charge.

• The electrons are outside the nucleus and have a negative charge.

The table lists some compounds found in foods and their formulas.

Based on this information, which of these statements is NOT true?

• A molecule of sorbitol contains three more oxygen atoms than a molecule of glutamine does.

• A molecule of lactose contains twice as many atoms as a molecule of fructose does.

• A molecule of fructose contains four more atoms than a molecule of glutamine does.

• A molecule of lactose contains twice as many carbon atoms as a molecule of sorbitol does.

Tags

NGSS.MS-PS1-1

Which of the following best describes the tilt of the earth when it is summer in the southern hemisphere?

• The northern hemisphere is tilted toward the sun
• The northern hemisphere is tilted away from the sun
• The norther hemisphere is tilted neither toward or away from the sun
• Why are you talking about the northern hemisphere when you asked about the southern hemisphere?

Tags

NGSS.MS-ESS1-1

What are the reasons for the season?

• Earth's tilt & rotation
• Earth's tilt & revolution
• Earth's rotation & size
• Earth's tilt & resolution

Tags

NGSS.MS-ESS1-1

Which season is taking place in the Northern Hemisphere in Position 3?

• Winter
• Spring
• Summer
• Fall

Tags

NGSS.MS-ESS1-1

Why is the Equator warmest?

• Because it is closest to the sun.
• Because it receives the most direct sunlight
• Because no clouds form here.
• Because it is far from the sun

Tags

NGSS.MS-ESS2-6

One rotation of Earth is equal to

• a day.
• a year.

Students make a model using a globe and a flashlight. Which answer choice best explains the change from daytime to nighttime on Earth?

• The Sun stops sending light to Earth at night.

• Earth moves farther away from the Sun at night.

• The tilt of the Earth causes less light to reach the Earth at night.

• Earth rotates and causes different parts of the Earth to experience night.

Tags

NGSS.MS-ESS1-1