The ____________________________ states that matter cannot be created or destroyed. It can be changed and its composition can be rearranged to for different materials, but the total amount of mater is conserved through these processes.

Tags

NGSS.MS-PS1-5

Walking on the hot sand on a beach is an example of:

• Convection

• Conduction

• Radiation

Answer explanation

The sand and the foot are in direct contact! Making it conduction.

Feeling heat from a campfire is an example of:

• Convection

• Conduction

• Radiation

Answer explanation

The heat "radiates" from the fire, just like the warm of the sun!

Hot water rising in a boiling pot is an example of:

• Convection

• Conduction

• Radiation

Answer explanation

The hotter water rises, while cooler water sinks, creating convection currents.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Over 200 million years ago, all of the continents on Earth were joined together in a single super-continent know as _________

Answer explanation

In Greek, pangaea means "all the earth"

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

Label the following on the trophic pyramid:

- Tertiary Consumers

- Primary Consumers

- Producers

- Secondary Consumers

Answer explanation

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Where is most of the energy found in a trophic pyramid?

• At the bottom

• At the top

• In the middle

Answer explanation

Most of the energy is found in producers- plants!

Tags

NGSS.MS-LS2-3

What term describes the amount of enengy required to reaise the temperature of 1 gram of a substance by 1 degree Celcius?

• Heat capacity

• Conductivity

• Latent Heat

• Enthalpy

Tags

NGSS.MS-PS3-4

What explains why water moves from the roots to the leaves of plants?

• What is pushed by solutes

• Capillary action draws water molecules upwards

• Water's cohension causes it to "pull" towards the leaves

• Water is pulled by gravity

Answer explanation

Tags

NGSS.MS-ESS2-4

What term describes the ability of a substance to dissolve in another substances?

• Concentration

• Dissociation

• Dissolution

• Solubility

Answer explanation

Many materials are soluble in water!