The structure of the Earth is divided into layers. These layers are both physically and chemically different. The Earth has an outer solid crust, a highly viscous mantle, a liquid outer core, and a solid inner core.
the earth is divided in to layers?
200
Often, x-rays. a form of electromagnetic radiation, similar to light but of shorter wavelength and capable of penetrating solids and of ionizing gases.
What is x-ray wave?
200
physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.
What is matter?
200
the moon goes in front of the earth and the sun reflects on the moon
What makes it dark at night?
300
pistil
What is female part of the plant
300
The boundaries between these layers were discovered by seismographs detecting the way vibrations bounced off the layers during earthquakes. Between the Earth's crust and the mantle is a boundary called the Moho. It was the first discovery of a major change in the Earth's structure as one goes deeper.
how do earthquakes happen?
300
a system for the detection of objects under water and for measuring the water's depth by emitting sound pulses and detecting or measuring their return after being reflected.
What is sonar?
300
protein from the foods we eat.
What give people energy?
300
The Moon orbits Earth at an average distance of 382,400 kilometers. The lunar month is the 29.53 days it takes to go from one new moon to the next. During the lunar month, the Moon goes through all its phases. You can see the phases drawn in the image below. Just like the Earth, half of the Moon is lit by the Sun while the other half is in darkness. The phases we see result from the angle the Moon makes with the Sun as viewed from Earth. The diagram below on the right is one you typically see in books. Don't let it confuse you. The images of the Moon show what you see the Moon look like from Earth when it is at given points in its orbit. It does not show which side of the Moon is lit by the Sun. The side lit by the Sun is always the side that is pointed toward the Sun, as seen in the diagram below on the left.
What are the phases of the moon
400
a non-living thing in a ecosystem
What is a abiotic factor
400
form into a hard outer layer.
What is the crust?
400
the strength and vitality required for sustained physical or mental activity.
What is energy?
400
48emc
how much matter does a brick have?
400
7
how many sections are in the earth?
500
a living thing in a ecosystem
What is biotic factor
500
7
how many layers do the earth have?
500
a biological community of interacting organisms and their physical environment.
(in general use) a complex network or interconnected system.
What is a ecosystem?
500
Einstein's famous equation from 1905 E=mc2 demonstrates that energy (E) is equivalent with matter (mass m). I