Astronomy
According to the big bang theory, the _________________ formed about 13.7 billion years ago
What is the Big Bang
The three types of rocks.
Metamorphic, Sedimentary, Igneous
What percent of Earth's water is Saltwater?
97%
Earth’s rotation makes global winds curve create.....
Name two forces of chemical weathering and two forces of mechanical weathering.
C: Acid Rain, acid in living things, acid in groundwater, water, air
M: plants, animals, water, ice, gravity
What do all gas planets have in common?
Made of gas, rings, far from Sun
The soil layer that is rich in humus and other organic material.
The O horizon.
What percent of the Earth is covered in water?
70 %
When a warm air mass overtakes a cold air mass, it forms a(an)_________________.
Warm Front
Name the three types of tectonic plate boundaries and how they move.
Divergent - apart
Convergent - together
Transform - past each other
5 parts of a Comet
Head, nucleus, coma, ion tail, dust tail
How do terraces and other soil conservation methods help to prevent erosion of soil by wind or water?
Terraces take a steep hill and make stairs from it. This causes the water to move more slowly down the hillside, taking less water with it. Soil conservations work to slow down water or prevent water from taking the soil.
The energy for the water cycle originally comes from
the Sun.
When a rapidly moving cold air mass overtakes a slow-moving warm air mass, the result is a(an)_____________.
Cold Front
The 3 Chemical Layers of Earth
Crust, Mantle, Core
A Spring tide occurs during ______ moon phases. A Neap Tide occurs during _______ moon phases.
Full & New / 1st and 3rd
Metamorphic rocks become igneous rocks through _______________ and _____________. Metamorphic rocks become sedimentary rocks through ___________ and _______, compaction and _______________.
melting and cooling
weathering, erosion, and cementation.
A Land breeze occurs because the land is _____, the water is _______ and the wind moves from the land to the water.
Cold / High Pressure ---- Warm/Low pressure
A _________ current is when ______ air rises, and _______ air sinks.
Convection, warm, cold
Greenhouse gases cause the Earth to grow ________ over time, caused by the burning of ___________, such as coal and gasoline.
Warmer, Fossil Fuels
During a __________eclipse, Earth is directly between the sun and the moon, causing the moon to pass through Earth’s shadow.
During a ___________eclipse, the moon is directly between the sun and Earth, causing the Moon to cast a shadow upon Earth.
Lunar , Solar
5 methods of soil conservation
No-till farming, crop rotation, contour plowing, terraces, cover crops
A Sea breeze occurs because the land is _____, the water is _______ and the wind moves from the water to the land.
warm/low pressure ------ cold/high pressure
Contrast the three ways in which heat is transferred; Conduction, Convection Radiation
Convection - Heat rises, cold sinks
Radiation - Heat travels via electromagnetic waves
Conduction - direct contact
The 5 Physical Layers of Earth