Semester

A star is born in a cloud of gas and dust called a __________.

• nebula

• galaxy

• asteroid

• black hole

Tags

NGSS.MS-ESS1-1

The atom in the picture has ________________ valence electrons.

• 8

• 18

• 22

• 40

Tags

NGSS.MS-PS1-1

Which rock layer in this image is the oldest?

• Layer 1

• Layer 2

• Layer 3

• Layer 4

Tags

NGSS.MS-ESS1-4

Order the divisions of geologic time from the longest to the shortest.

• eras, eons, periods

• eons, eras, periods

• periods, eras, eons

• eons, periods, eras

Tags

NGSS.MS-ESS1-4

What is the chemical formula for water?

Tags

NGSS.MS-PS1-1

Which of the following is a renewable energy source?

• Coal

• Natural Gas

• Solar Energy

• Nuclear Energy

What is the acceleration due to gravity on Earth?

• 9.8 m/s^2

• 10 m/s^2

• 8.9 m/s^2

• 9.2 m/s^2

Which organelle is known as the powerhouse of the cell?

• Nucleus

• Mitochondria

• Ribosome

• Endoplasmic Reticulum

Tags

NGSS.MS-LS1-2

What is the process by which plants make their food using sunlight?

• Respiration

• Photosynthesis

• Transpiration

• Digestion

Tags

NGSS.MS-LS1-6

Which gas is most abundant in the Earth's atmosphere?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Hydrogen