Solomon Science

2NO (colorless gas) + O₂ (colorless gas) _{-----------------------} 2NO₂ (Brown gas)

Which is evidence of a chemical change?

• gas present

• total number of atoms remained unchanged

• The state of matter remained the same

• A brown gas is produced

Tags

NGSS.MS-PS1-2

Which of these two are chemical changes?

• cutting paper

• two substances combine and bubbles form

• freezing water

• two liquids combine and form a solid

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

what is the net force of a object that has mass of .03 and accleration of 800 m/s

• 240 kg/m/S2

• 240N

• .0037 kg/m/s

• 2,6667 N

Tags

NGSS.MS-PS2-2

A ball is rolled in a straight line on a smooth surface. No friction is produced, and the surface extends indefinitely. According to Newtons's Law of inertia, the ball will--

• continue to roll in a straight line and remain at a constant speed

• continue to roll in a straight line and gradually increase in speed

• continue to roll in a straight line and increase, then decrease in speed

• continue to roll in a straight line and eventually slow to a stop

Which of the following statements is correct regarding the speed and velocity of an object?

• I.

• II.

• III.

• IV.

Tags

NGSS.MS-PS3-1

During the daytime on area coastlines, the temperature of the air over the land is warmer than over the ocean. At night is reversed. This creates=-----

• sand storms

• hurricanes

• sea breezes and land breezes

• tornadoes

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

One molecule of glucose contains--

• carbon atom, 2 hydgrogen atoms, and 1 oxygen atom

• 6 carbon atoms, 12 hydrogen atoms, and 6 oxygen atoms

• 1 carbon atom, 1 hydrogen atom, and 1 oxygen atom

• 6 carbon atoms, 1 hydrogen atom, and 6 oxygen atoms

Tags

NGSS.MS-PS1-1

If a cold front with high pressure headed towards Dallas the effect would likely be---

• temperatures will rise into the 90's and the high pressure will bring rainy weather

• there will be no affect on the weather

• the temperature will drop and high pressure will bring sunny weather

• the temperature will drop and the high pressure will bring cloudy weather

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

The radiant energy that reaches earth has been most reponsible for which of the following?

• creating electricity from solar panels

• changing oceans levels known as tides

• convection within earth's atomosphere leading to weather patterns

• the limited plant life found at the poles

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

The term "jet stream" is often used by wather forecasters to describe

• thel cloud-like condensation trails that are sometimes seen behind jet air craft

• warm pacific winds associated with volcanic activity in the western pacific which carry heat to the north pole

• solar winds that bring high energy particles to the upper atmosphere, providing heat which sets off convection cycles disturbing weather in the tropical latitudes

• the west to east winds that circle the globe, often just below the poles in latitude and just beneath the stratosphere in elevation

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6