Practice 5 - UIL 7th grade Science 11/30

The radiant energy from the sun is used by autotrophs in the process of photosynthesis.  By what means is the radiant energy transferred to Earth?

• Convection

• Conduction

• Radiation

• Transpiration

Which of the following is not an organic compound?

• Acetone C3H6O

• Benzene C6H6

• Sucrose C12H22O11

• Ammonia NH3

Tags

NGSS.HS-LS1-6

These organisms are known to eat primary consumers in a food chain or food web.  Which of the following best identifies the description of this organism?

• Herbivoe

• Omnivore

• Autotroph

• Decomposer

Tags

NGSS.MS-LS2-3

Which of the following does not show work being done?

• a person lifting weights

• a child throwing a ball

• a man walking up the stairs

• a server carrying a tray of drinks to a table

When a piece of food is being chewed in someone’s mouth, you will use your teeth to tear apart the food and also the saliva in your mouth to digest the food.  The process of saliva digesting the food would be considered a:

• Chemical change

• Physical change

• Intrinsic property

• Extrinsic property

Tags

NGSS.MS-PS1-2

Complex carbohydrates or polysaccharides are broken down by the digestive system into simple sugars.  These complex carbohydrates can be found in all of the following except

• potatoes

• honey

• grains

• vegetables

Tags

NGSS.MS-LS1-7

 Energy can only be transformed or converted into other forms.  This occurs when you consume and digest food.  Energy cannot be created or destroyed.  This is described by which of the following?

• Law of conservation of mass

• Law of conservation of energy

• Law of conservation of momentum

• Law of conservation of kinetics

Tags

NGSS.MS-PS3-5

Plants respond to changes in their environment.  An example of this type of tropism would be vines or climbing plants.  What is the plant responding to?

• Gravitropism

• Phototropism

• Photoperiodism

• Thigmotropism

When a disturbance of some kind changes an existing community without removing the soil, secondary succession can occur.  Which of the following events could cause this?

• Volcanic Eruption

• Acid Rain

• Dust Storm

• Wildfire

Tags

NGSS.MS-LS2-4

The gulf coast experiences large amounts of weathering, erosion, and deposition.  Wave action is constant along the coastline of Texas.  During a hurricane, which of the following accelerates the most?

• Wave weathering

• Wave deposition

• Wave erosion

• Wave Creation

Tags

NGSS.MS-ESS3-2