Science Mya

Select all the ingredients for photosynthesis

• Glucose

• Carbon Dioxide

• Water

• Sunlight

• Oxygen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Carbon cycles through various materials here on Earth. Carbon is found in organisms that die and are broken down by microorganisms. These microorganisms put carbon back into the environment. Which of the following processes describes how microorganisms cycle carbon back into the atmosphere?

• Combustion

• Filtration

• Photosynthesis

• Respiration

Carbon is the basis of compounds found in all living organisms. Look at the diagram of the carbon cycle . Which of the following biological principles does the diagram best exemplify?

• Law of Universal Gravitation

• Law of Conservation of Mass

• Law of Superposition

• Law of Motion

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following properties are independent of sample size?

• Mass

• Density

• Volume

• Boiling Point

• Melting point

Three elements are very reactive nonmetals with similar properties. Where are these elements most likely located in the periodic table?

• in the same row on the periodic table

• in the four corners of the periodic table

• in the two top rows of the periodic table

• in the same column of the periodic table

Look at the picture and choose ALL of the following choices that are true.

• The picture shows a compound

• The picture shows an element

• The picture shows a molecule

• The picture contains 3 elements

• The picture shows a mixture

Tags

NGSS.MS-PS1-1

Iron (Fe) can combine with oxygen gas (O₂) to form rust molecules (FeO₃), This chemical reaction is represtented in the balanced equation shown below.

4Fe + 3O₂ --> 2Fe₂O₃

Which of the following represents one atom of an element involved in this chemical reaction?

• Fe₂O₃

• FeO

• O₂

• Fe

Tags

NGSS.MS-PS1-1

The equation below shows the chemical reaction that takes place during cellular respiration.

Oxygen + ____________________ ----> Energy + Carbon Dioxide + Water

Which of the following substances belongs in the empty blank above?

• Cell

• Chlorophyll

• Glucose

• Sunlight

A scientist conducts an experiment on the structure of atoms. The results of the experiment seem to disprove parts of the accepted atomic theory. After the scientist publishes the results, other scientists conducting the same and similar experiments obtain similar results. Which of the following will most likely happen?

• The accepted atomic theory will be changed

• The atomic theory will continue to be accepted as is

• The results of the new experiments will be disregarded

• The accepted atomic theory will be completely discarded

Through the process of photosynthesis, a century plant uses sunlight to make food. the equation below shows this process.

Light Energy + Carbon Dioxide + Water --> Glucose + Oxygen

What happens to the light energy that the century plant uses for photosynthesis?

• The light energy is destroyed during the chemical reaction

• The light energy is released into the atmosphere as water vapor

• The light energy is transformed into chemical energy in glucose

• The light energy is transformed into thermal energy and oxygen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7