Mega Review

________ are evidence of past life.

• Intrusions

• Fossils

• Meteorites

• Cells

Tags

NGSS.MS-LS4-1

What type of molecule does this picture show?

• hydrogen peroxide

• water

• carbon monoxide

• sugar

Answer explanation

The picture shows water, which is composed of two hydrogen atoms and one oxygen atom (H2O). This distinguishes it from hydrogen peroxide (H2O2), carbon monoxide (CO), and sugar, which have different molecular structures.

Tags

NGSS.MS-PS1-1

Synthetic materials are made by _________.

• aliens

• humans

• farmers

• nature

Answer explanation

Synthetic materials are created through human innovation and engineering, making 'humans' the correct choice. Unlike natural materials, which come from nature, synthetic ones are artificially produced.

Tags

NGSS.MS-PS1-3

Weather Patterns

• Conduction

• Convection

• Radiation

Answer explanation

Convection is the primary process driving weather patterns, as it involves the movement of air and heat in the atmosphere. This process helps distribute thermal energy, influencing wind and precipitation.

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS2-5

Taking a trip to the beach and falling asleep under the sun, resulting in a sunburn is an example of what?

• Radiation

• Conduction

• Convection

Answer explanation

Taking a trip to the beach and getting sunburned is an example of radiation. The sun emits ultraviolet rays that directly heat the skin, causing sunburn, which is a result of exposure to radiant energy.

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?

Which organelle is known as the powerhouse of the cell?

• Nucleus

• Mitochondria

• Ribosome

• Endoplasmic Reticulum

Tags

NGSS.MS-LS1-2

What is the primary gas found in Earth's atmosphere?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Hydrogen