Summative Test in Earth Science

Emma relies on healthy soil to grow crops in her garden. This soil is part of which Earth subsystem?

• Geosphere

• Hydrosphere

• Atmosphere

• Biosphere

Ava is studying the Great Barrier Reef, a famous marine ecosystem that supports a vast array of life forms. Which two subsystems interact most prominently in this environment?

• Geosphere and Hydrosphere

• Hydrosphere and Biosphere

• Hydrosphere and Atmosphere

• Biosphere and Atmosphere

After the Sun formed, the leftover dust and gas eventually coalesced to form the planets. Which theory explains this process? Abigail is curious about this topic in her astronomy class.

• Plate Tectonics

• Big Bang Theory

• Nebular Theory

• Steady State Theory

Noah is studying Earth's atmosphere and learns that it helps protect living organisms from harmful solar radiation. This protection is primarily due to which layer?

• Troposphere

• Mesosphere

• Stratosphere

• Thermosphere

In a forest, different species of plants and animals interact with each other and their environment. What is this unit of nature called?

• Ecosystem

• Ground

• Complexity

• System

During a science class, Samuel asked, "Global warming is primarily driven by an increase in which gas in Earth's atmosphere?"

• Nitrogen

• Oxygen

• Carbon Dioxide

• Argon

Isla and Samuel are discussing how much of the Earth's surface is covered by water. What percent do they think it is?

• Approximately 50%

• Approximately 60%

• Approximately 70%

• Approximately 80%

Anika is studying the Earth's layers in her geology class. She learns that a thin layer of solid rock forms the outermost part of the Earth's surface. This layer belongs to which subsystem?

• Atmosphere

• Geosphere

• Biosphere

• Hydrosphere

Rohan and Samuel are discussing the age of the Universe based on astronomical observations. How old is the Universe thought to be?

• 4.6 billion years

• 9.8 billion years

• 13.8 billion years

• 20.5 billion years

On a sunny day, Isla enjoys playing outside while learning about how energy from the Sun powers life on Earth. What is the primary source of this energy?

• Geothermal Energy

• Solar Energy

• Nuclear Energy

• Wind Energy