U5W1 Spelling & Vocab

Spell the word defined below.

This word is an adjective that means you can't remember things, or you're being absent-minded.

Spell the word defined below.

This word is an adverb that means paying close attention, being cautious, being detailed.

Spell the word defined below.

This word is a noun that means the course along which someone, or something moves, or it can mean guidance.

Spell the word defined below.

This noun means where someone or something has been placed, or put. It can also be how something is arranged.

Spell the word defined below.

This word means a sudden burst / outbreak of something, or it relates to volcanoes.

Fill in the blank.

We can use a __________ to find the difference between the average altitude of a stealth jet and a regular airplane.

• approximately

• orbit

• diameter

• calculation

According to the diagram, the ozone layer sits _____________ 22 km above Earth's surface.

• calculation

• approximately

• spheres

• diameter

Fill in the blank.

The side bar from your "Mars" text explains that our _______________ understandings have changed over time with new discoveries.

• evaluate

• diameter

• astronomical

• orbit

Fill in the blank.

Scientists often use a set of ___________ to evaluate the similarities and differences between planets. On this chart, you can see that Mars and Earth are judged based on distance from the sun, diameter, length of days/years, temperatures, atmospheres, and gravity.

• criteria

• orbit

• evaluate

• spheres

Scientists once believed each planet would _______ the sun in a perfect circle. However, it was later discovered that these spheres move in an elliptical, or oval shaped pattern.

• diameter

• astronomical

• evaluate

• orbit