10 Days to STAAR: Day 9

1. Students have these tools available to help them separate mixtures. Which statement describes a way to best separate a mixture quickly using one or more of the tools?

• Tweezers can be used to quickly separate a mixture of salt and sugar.
• A magnet can be used to quickly separate a mixture of steel screws and iron nails.
• A strainer can be used to quickly separate a mixture of sand and gravel.
• A filter can be used to quickly separate a mixture of beads, marbles, and sand.

2. A soccer player kicked a ball at the wall. A overhead-view diagram of the kick is shown below. Which letter in the diagram is the best prediction of the ball's new position after it bounces off of the wall?

• A
• B
• C
• D

Tags

NGSS.MS-PS2-1

3. This roadside is located on the side of a steep mountain. A winding road travels up and around the mountainside. After a heavy rainfall, travelers should be MOST concerned about a possible _______________ affecting the roadway.

• volcanic eruption
• earthquake
• flood
• landslide

5. Which of the following is most responsible for the changing seasons on Earth?

• Earth's rotation on its axis
• The position of the Moon as it orbits around the Sun
• The distance of the Earth from the Sun
• Earth's tilted axis as it orbits around the Sun

Tags

NGSS.MS-ESS1-1

6. Students listed observations that they made when observing aquariums and terrariums at a nature center. Which TWO observations involve an interaction between two biotic factors in the ecosystem?

• A fish eats aquatic plants.
• A snake rests on a heated mat.
• A turtle basks on a rock below a lamp.
• A bearded dragon eats a cricket.
• An anole runs across the sand.

Tags

NGSS.MS-LS2-2

Part A How can the student determine which sphere is made of copper?

• Place each sphere in a tub of water.
• Roll each sphere down a ramp.
• Place each sphere next to a magnet.
• Place each sphere between cut wires in a circuit to see if it conducts electricity.

Tags

NGSS.MS-PS1-2

Part B What statement best supports the answer to Part A?

• Copper is nonmagnetic.
• Copper is more dense than water.
• Copper is a conductor of electricity.
• Copper will roll faster than the other metals.

Tags

NGSS.MS-PS1-2

9. This circuit is not working. Suggest TWO changes that should be made in order for all bulbs to be lit.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-3