Science Unit 0 & Space Systems

False (B)

Solar eclipse and Lunar eclipse

<p>maria</p> Signup and view all the answers

<p>The moon is completely in the umbra. (D)</p> Signup and view all the answers

<p>Maria = Dark, flat areas Craters = Large round pits Highlands = Light-colored mountainous areas</p> Signup and view all the answers

<p>The Moon (B)</p> Signup and view all the answers

<p>year</p> Signup and view all the answers

<p>To study the natural world and gather evidence (B)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>responding variable</p> Signup and view all the answers

<p>rotation</p> Signup and view all the answers

<p>Gravity = The force that attracts objects toward each other Mass = The amount of matter in an object Weight = The force of gravity on an object Inertia = The tendency to resist a change in motion</p> Signup and view all the answers

<p>An elliptical path at an average distance of 149.597 million kilometers (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>core, radiation zone, convection zone</p> Signup and view all the answers

<p>3,476 kilometers (A)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Orbital Velocity and Escape Velocity</p> Signup and view all the answers

<p>satellite</p> Signup and view all the answers

<p>The launch of Sputnik I (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>To carry a crew into space and return to Earth for reuse.</p> Signup and view all the answers

<p>Rocket = A device that expels gas to move in the opposite direction Space Probe = A spacecraft that collects data without a crew Space Station = A large artificial satellite for human research Satellite = An object that revolves around another object in space</p> Signup and view all the answers

<p>Orange (D)</p> Signup and view all the answers

<p>False (B)</p> Signup and view all the answers

<p>Because its reddish color was reminiscent of blood.</p> Signup and view all the answers

<p>nine</p> Signup and view all the answers

<p>Titan (A)</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>Ammonia, phosphine, water vapor, and hydrocarbons.</p> Signup and view all the answers

<p>Mars = Rocky surface, reddish color Saturn = Gas giant with swirling gases Earth = Home to life, solid surface Titan = Moon of Saturn with internal oceans</p> Signup and view all the answers

The ways scientists study the natural world and create explanations based on evidence.

The variable a scientist changes in an experiment.

The variable that changes in response to the manipulated variable.

A well-tested concept that explains many observations.

Earth spinning on its axis.

Earth orbiting the sun in an elliptical path.

The force that pulls objects toward each other.

Every object in the universe attracts every other object.

A region of tightly packed gas where energy travels as electromagnetic radiation.

Outermost layer of the sun, where hot gas rises, cools, and sinks.

Moon spins on its axis once every 27.3 days.

Moon orbits Earth every 27.3 days.

Alignment of Sun, Earth, and Moon, creating a shadow on the Moon.

Moon completely within Earth's darkest shadow.

Dark, flat areas on the Moon's surface, thought to be ancient lava flows.

Round pits on the Moon's surface, formed by impacts.

The Moon's diameter is about one-fourth of Earth's.

The Moon has one-eightieth the mass of Earth.

A rocket expels gas to move in the opposite direction.

Velocity needed for a rocket to orbit (move around) Earth.

Velocity to escape a planet's gravity.

An object that revolves around another object in space.

Spacecraft to carry crew and equipment to and from space. Reusable.

Spacecraft with scientific instruments. No human crew.

A small robot, typically used on other planets, designed to move around and collect data.

A large planet composed mainly of gases like hydrogen and helium, with no solid surface.

A planet needs a stable environment with liquid water, a moderate temperature range, and an atmosphere that shields from harmful radiation.

Mars's reddish color is due to iron oxide, or rust, in its soil and rocks.

Saturn's atmosphere is mostly hydrogen and helium, with traces of ammonia, phosphine, water vapor, and hydrocarbons.

Saturn is a giant planet, nine times wider than Earth.

Some of Saturn's moons, like Enceladus and Titan, have internal oceans and may be potentially suitable for life.

Saturn's extreme temperatures, pressures, and harsh environment make it unlikely for life as we know it to exist.