| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.22 |
| Score | 0% | 64% |
The heat from the Sun traveling to Earth is an example of which of the following?
convection |
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electricity |
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conduction |
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radiation |
Radiation occurs when electromagnetic waves transmit heat. An example is the heat from the Sun as it travels to Earth.
An asteroid belt holds many of the asteroids in our solar system. It is located between the orbits of which planets?
Mars and Jupiter |
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Mars and Earth |
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Jupiter and Saturn |
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Mercury and Venus |
The solar system also contains over a million rocky fragments of at least 1km in diameter called asteroids as well as millions more with smaller diameters. Many of these asteroids are an asteroid belt between the orbits of Mars and Jupiter.
The connective tissue that connects bones to other bones at joints is called:
tendons |
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ligaments |
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cartilage |
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knuckles |
Tough fibrous cords of connective tissue called tendons connect muscles to the skeleton while another type of connective tissue called ligaments connect bones to other bones at joints (elbow, knee, fingers, spinal column).
The dwarf planet Pluto is located where?
in the Kuiper Belt |
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outside the solar system |
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in the asteroid belt |
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between the orbits of Jupiter and Saturn |
The Kuiper Belt is similar to the asteroid belt but much larger. Extending beyond the orbit of Neptune, it contains objects composed mostly of frozen methane, ammonia, and water. Most notably, the Kuiper Belt is home to Pluto, a dwarf planet that, until a 2006 reclassification, was considered the ninth planet of the solar system.
Which of the following describes the Earth's outer core?
primarily solid |
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liquid |
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makes up most of the Earth's volume |
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solid |
The Earth's core is divided into the liquid outer core (1,430 miles or 2,300 km radius) and the solid inner core (745 miles or 1,200 km radius).