G

Sequence of day and night due to

• Rotation of earth around the sun

• Rotation of the moon around the earth

• Rotation of the earth around its axis

Elements Have a luster layer

• Metal

• Non metal

Burning a paper is

• Physical change

• Chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Iron rusting happens in presence of

• Oxgen and carbon dioxide

• Carbon dioxide and water

• Oxygen and water

Evaporation is

• Changing of matter from solid state to liquid state

• Changing of matter from liquid state to solid state by cooling

• Changing of matter from liquid state to gaseous state by cooling

• Changing of matter from liquid state to gaseous state by heating

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Pollution can enter the hydrosphere in many different ways. Which statement describes a type of point-source pollution?

• Oil being transported on a ship spills into the ocean.

• Grease from cars washes into a stream along the roadway.

• Litter along beaches gets pulled into the ocean by the tide.

• Rainwater carries chemical fertilizer from land into a stream.

Which effect of mining for resources most directly impacts the biosphere?

• releasing dust into the air

• increasing erosion of soil

• adding sediment to waterways

• degrading habitats for animals

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which example best describes how human activity can directly impact the geosphere?

• Poor farming practices can degrade the soil and cause erosion.

• Dumping waste from a factory into a river can pollute the water supply.

• Construction activities can release harmful dust and chemicals into the air.

• Removing too many fish from the ocean can cause a fish species to go extinct.

Tags

NGSS.MS-ESS3-4

The burning of coal releases sulfur dioxide gas. How might the burning of coal lead to damaged plant life?

• Sulfur dioxide can combine with drops of water to form acid rain.

• Sulfur dioxide is a radioactive material that is dangerous for many years.

• Sulfur dioxide gives off heat that raises the temperature of bodies of water.

• Sulfur dioxide causes the remains of animals to decompose at a faster rate.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Which statement about the effects of natural events and human activities is true?

• The environment is not usually affected by natural events.

• All human activities change the environment in a negative way.

• Natural events always have a positive impact on the environment.

• Human activities and natural events can damage the environment.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4