Science UIL Practice #2

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll, converting carbon dioxide and water into glucose and oxygen.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What are reactants and products in a chemical reaction?

Back

Reactants are the starting substances in a chemical reaction, while products are the substances formed as a result of the reaction.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is the role of a biologist in studying photosynthesis?

Back

A biologist studies photosynthesis as a biological process that occurs in living cells, focusing on how plants convert light energy into chemical energy.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Front

What is the role of a chemist in studying photosynthesis?

Back

A chemist studies photosynthesis as a chemical reaction, analyzing the reactants and products involved in the process.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Front

How can you determine the mass of a substance in a container?

Back

To determine the mass of a substance in a container, you need to know the mass of the empty container and the mass of the full container.

Front

What is the significance of surface temperature in stars?

Back

The surface temperature of a star affects its color and brightness; hotter stars appear blue, while cooler stars appear red or orange.

Front

What indicates that a chemical reaction has occurred?

Back

A chemical reaction is indicated by the formation of a new substance that is difficult to reverse, along with possible changes in color, temperature, or gas production.

Tags

NGSS.MS-PS1-2

Front

What is sodium chloride commonly known as?

Back

Sodium chloride is commonly known as table salt.

Front

What is a blue star?

Back

A blue star is a type of star that has a very high surface temperature, typically over 10,000 Kelvin, and emits a blue light.

Front

What is a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another, involving the breaking and forming of bonds.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5