Nature of Science
History of Astronomy
Methods of Measurement
Solar System
Mercury & Venus
100

An explanation of a phenomenon in nature, supported by evidence and never shown to be false.

Theory
100

This hypothesis explained orbits as circular, with the Earth at the center of the solar system.

Geocentrism

100

When looking at Polaris, its angle of altitude is equivalent to your __________________.  

Latitude

100

Why do seasons occur on a planet?

Tilt of the planets axis

100

Venus is often called Earth's Evil Twin. What two similarities make it like a twin?

Size and Composition

200

The tendency to listen to information that agrees with our beliefs and values.

Confirmation Bias

200

This man developed the laws of motion (of objects, not planets).

Isaac Newton

200

What happens to the wavelength of a wave as the energy decreases?

Wavelength increases

200

A cloud of gas and dust where new stars are formed (a "stellar nursery")

Nebula

200

What is the daytime surface temperature on Mercury?

~800 degrees F

300

An observation that is tested or verifiable

Fact

300

Who was the first person to hypothesize Heliocentrism?

Nicolaus Copernicus

300

Explain two ways the force of gravity would decrease between two celestial objects.

1. Increasing distance
2. Decreasing in mass

300

The solar system was formed from a huge cloud of dust and gas, mainly due to the process of…

Accretion

300

What do scientists hypothesize exist in the craters at the poles of Mercury?

Water ice

400

This is any practice claiming to be based on the scientific method when it is not. 

Pseudoscience

400

A more stretched ellipse would be said to have a higher __________________.

Eccentricity

400

On the celestial sphere, what is equivalent to latitude?

Declination

400

A planet in our solar system is observed to be large, gaseous, and far from the Sun compared to other planets. This planet would be described as...

Jovian

400

This is the most abundant gas in Venus' atmosphere.

Carbon Dioxide

500

Difference between a hypothesis and a theory.

Supporting evidence, rigorous testing

500

State 1 of the 3 of Kepler's Laws in your own words.

1. Orbits are elliptical.
2. An orbiting object covers equal areas in equal amounts of time.
3. The further from the sun, the longer it takes an object to orbit.  

500

The light produced from a star passing through a cooler gas would produce what type of spectra?

Absorption Spectra

500

List the planets in order starting at the Sun, moving outward.  Include the Asteroid belt.

Mercury, Venus, Earth, Mars, Asteroid Belt, Jupiter, Saturn, Uranus, Neptune

500

What is it called when we watch a planet like Venus or Mercury cross in front of the Sun?

A transit

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