OpenSciEd 7.2- 8th Grade

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases energy, usually in the form of heat, and feels hot to the touch.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Front

What ingredient in Cup B increases the release of thermal energy compared to Cup A?

Back

60mL more chemical Y for Cup B compared to Cup A.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What ingredient is likely added to Cup E to create foaming and more heat compared to Cup D?

Back

Liquid dish soap.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Front

What is step 5 of the engineering design process?

Back

Use data gathered during testing to identify the characteristics that worked the best.

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Front

What is the purpose of venting a flameless heater?

Back

To prevent the build-up of gas and an explosion from happening.

Front

What is thermal energy?

Back

Thermal energy is the energy that comes from the temperature of matter. It is the total kinetic energy of particles in a substance.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Front

What is the difference between an endothermic and exothermic reaction?

Back

An endothermic reaction absorbs energy and feels cool to the touch, while an exothermic reaction releases energy and feels hot.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Front

What is the role of chemical X in a chemical reaction?

Back

Chemical X can act as a reactant that participates in the reaction, potentially affecting the rate and energy changes.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What safety precautions should be taken when conducting chemical reactions?

Back

Always wear safety goggles, gloves, and work in a well-ventilated area to prevent exposure to harmful substances.

Front

What is the significance of testing in the engineering design process?

Back

Testing allows engineers to evaluate the effectiveness of their designs and make necessary adjustments based on data.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

NGSS.MS-PS1-6