Show:
Light/Sound/Waves
Space
Plate Tectonics
Ecology
Rocks and Minerals
100
In a solid, the molecules are tightly packed so if one vibrates, they all vibrate. The denser the medium, the faster the sound will travel.
What is Why does sound travel the fastest through solids?
100
As the Earth revolves around the Sun, certain parts of the Earth tilt toward or away from the sun. The Earth's axis is tilted at 23.5 degrees.
What is Why do we have seasons?
100
They each have a different density.
What is Why do Earth's layers separate?
100
They break down plants which put nutrients into the soil.
What is How do decomposers help the soil?
100
chemical weathering
What is When minerals are dissolved, what type of weathering has occurred?
200
Yes
What is Can water absorb energy from the sun?
200
A revolution takes 365.25 days(1 year) and a rotation takes 24 hours(1 day).
What is How is one revolution different from one rotation?
200
igneous rocks
What is What type of rocks form from cooled magma?
200
Biotic factors are living or once living (cows, grass) and abiotic factors are not living (air, water, sunlight)
What is How are biotic factors different from abiotic factors?
200
Horizon A
What is Which soil horizon contains the most humus?
300
As amplitude increases, energy increases.
What is How does amplitude affect energy?
300
Mercury
What is Which planet takes the least amount of time to travel around the Sun?
300
intrusive: form when magma cools inside the Earth extrusive: form when lava cools on Earth's surface
What is Name the two types of igneous rocks.
300
A food web is made of many food chains
What is How is a food chain different from a food web?
300
No, a mineral with a hardness of 5 can scratch a 5 and anything lower on the scale.
What is When reading the Moh's hardness scale, if a mineral has a hardness of 5, can it scratch a 6?
400
In a solid, the molecules are tightly packed so if one vibrates, they all vibrate. The denser the medium, the faster the sound will travel.
What is Why does sound travel the fastest through solids?
400
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
What is Put the planets in order starting with Mercury (closest to the Sun).
400
humus (decayed, organic matter)
What is When leaves and twigs on the forest floor decay, what is formed?
400
If an organism's habitat is destroyed, its population will decrease because it will not have any place to live.
What is Explain how habitat destruction can be a limiting factor
400
pyrite
What is Fool's gold is also known as __________.
500
The light is refracted and changes speed as it moves from one medium to another. Half the pencil is in water and the other half is in water so light is moving at two different speeds.
What is Why does a pencil look bent when it is in a half full glass of water?
500
A star
What is When gas and dust are forced together, what can form?
500
As a mineral is rubbed across a tile, powder is left behind.
What is When doing the streak test with a mineral what occurs?
500
The organisms that depend on that organism for food can decrease.
What is If you remove an organism from a food web what can occur?
500
weathering
What is The breakdown of rocks by natural forces into sediment is called _________.