2015 Science STAAR Released pt. 1

A dryer dries clothes primarily by converting —

• electrical energy to heat and mechanical energy 
• mechanical energy to heat and electrical energy
• electrical energy to heat and light
• mechanical energy to heat and vaporization

Tags

NGSS.HS-PS3-3

NGSS.HS-PS3-4

Which list of characteristics describes organisms classified as animals?

• Unicellular, prokaryotic, autotrophic
• Multicellular, eukaryotic, heterotrophic
• Unicellular, eukaryotic, heterotrophic
• Multicellular, eukaryotic, autotrophic

An athlete is trying to lift some weights. He successfully lifts 200 N weights, but when he tries to lift 400 N weights, he is unsuccessful.
Which of these correctly compares the amount of work the athlete does on the weights?

• The athlete does no work on either the 200 N weights or the 400 N weights.
• The athlete does no work on the 200 N weights but does work on the 400 N weights.
• The athlete does work on both the 200 N weights and the 400 N weights
• The athlete does work on the 200 N weights but does no work on the 400 N weights

The main function of this human body system is to —

• sense odors in the environment
• exchange gases with the environment
• chew food as it enters the mouth
• trap particles that enter the nose

What phase would come immediately after this phase?

• Waxing crescent
• Waxing gibbous
• Waning crescent
• Waning gibbous

Tags

NGSS.MS-ESS1-1

Based on the diagram, which of the following statements is valid?

• Owls are predators of bats, and bats are predators of moths.
• Beetles compete with bats and cave spiders.
• Snakes prey on bats and owls.
• None of the above

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?

• The shape of the coal changes.
• Oxygen is present.
• A new substance is produced.
• Coal is made up of more than one element.

Tags

NGSS.MS-PS1-2

What should the student do in order to best model the cause of the day-and-night cycle?

• Spin the ball in different directions
• Tilt the ball while it is spinning
• Paint one half of the ball black and the other half white
• Shine a bright light on one side of the ball

Tags

NGSS.MS-ESS1-1

The atoms of a certain element each contain 11 protons and 1 valence electron. Which statement correctly identifies this element and describes its chemical reactivity?

• The element is sodium, and it is highly reactive.
• The element is fluorine, and it is not very reactive.
• The element is sodium, and it is not very reactive.
• The element is fluorine, and it is highly reactive.

Tags

NGSS.MS-PS1-1

A bus travels 20 km in 30 minutes. What is the average speed of the bus?

• 20 km/h
• 30 km/h
• 40 km/h
• 50 km/h

Tags

NGSS.4-PS3-1