| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.11 |
| Score | 0% | 62% |
Which of the following states of matter exists at the highest temperature?
liquid |
|
solid |
|
gas |
|
none of these |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
The four planets closest to the Sun are called terrestrial. What does terrestrial mean?
the planets have water |
|
the planets have moons |
|
the planets have magnetic fields |
|
the planets are Earth-like |
The four planets closest to the Sun (Mercury, Venus, Earth, and Mars) are called terrestrial (Earth-like) planets because, like the Earth, they're solid with inner metal cores covered by rocky surfaces.
Meteoroids, meteors and meteorites are categorized based on which of the following?
their density |
|
their location |
|
their temperature |
|
their size |
Smaller rocks shed by asteroids and comets are called meteoroids. When these rocks reach Earth's atmosphere, they burn up in the mesosphere and become meteors. If a meteor manages to reach the Earth, it is called a meteorite.
Which of these represents the path of blood flow through the heart?
right atrium → right ventricle → lungs → left atrium → left ventricle |
|
left atrium → left ventricle → lungs → right atrium → right ventricle |
|
right atrium → left ventricle → lungs → left atrium → right ventricle |
|
left atrium → right ventricle → lungs → left atrium → right ventricle |
To provide oxygen to the body, blood flows through the heart in a path formed by the right atrium → right ventricle → lungs → left atrium → left ventricle → body. When blood enters the right side of the heart it is deoxygenated. It enters the left side of the heart oxygenated after traveling to the lungs.
The rows of the Periodic Table of the Elements are called:
families |
|
periods |
|
groups |
|
shells |
The rows of the Periodic Table are called periods and contain elements that have the same number of electron shells ordered from lower to higher atomic number.