The average distance between the Earth and the sun is referred to as one Astronomical Unit (AU), which is approximately 149,600,000 km – or about 93 million miles. The measure is an average because throughout the year the distance between the Earth and the sun changes. This is because the Earth travels around the sun in an elliptical orbit shaped like an oval rather than a circle. The Astronomical Unit is a relative measure of how close objects are in the solar system. Consider the distance between the Earth and its moon, which is approximately 380,000 km. If we multiply by the ratio of AU to kilometers, we can convert this distance to Astronomical Units.

The dwarf planet Eris is 6.30912 X 109 miles from the sun. The distance from Eris to the sun is about how many times larger than the distance from Ceres to the sun?

Mercury is 57,900,000 km from the sun. What is this number in scientific notation?

True or false: A vaccine works by priming the immune system so that it is ready to respond with a rapid and more intense response when encountering the virus/pathogen another time.

The codon for transcription is found on _________________.

The scientist(s) that published the double helix model for the structure of DNA in 1953 

What percentage of our genome is identical to a chimpanzee?

Which statement accurately describes Glycosylated hemoglobin (HbA1c)?

Write the correct conjugation in Spanish, for each verb and subject pronoun listed. You may answer with one word.  Be sure to change the endings of all verbs. The list of -Ar verb endings in Spanish are ‘o, as, a, amos, an’. 

Match the Spanish verb with the correct English translation. One extra choice.