The Mystery of Mars Vocabulary

1. The Mystery of MarsVocabulary Geologist Organic Meteorite Interplanetary Atmosphere OCR 2002 5th grade Lesson 5 The Mystery of Mars Sandra Sanchez Abbott Elementary

2. Geologist • “use context clues and word structure” • The little robot geologist dug its wheels into the red Martian dirt, churning up the soil to analyze its texture and clumpiness. • The geologist studied the soil in our area to determine if the land was good for crops. geologist- a person who studies the solid mater on a moon or planet

3. Organic • “use apposition” • Another experiment looked for organic molecules, the molecules that make up living things. • My brother takes an organic chemistry class in college. He studies the molecules of living things. organic- taken from a living being

4. Meteorite • “use context clues” • Scientist know that meteorites and interplanetary dust deliver a steady supply of organic molecules to the Martian surface. • The scientist found remnants of a meteorite in the desert. meteorite- a piece of matter from the solar system that hits a planet or moon’s surface

5. Interplanetary • “use context clues, word structure” • Science fiction stories sometimes include interplanetary travel between Earth and another planet. • The spacecraft on Mars radioed an interplanetary communication back to Earth. interplanetary- shared between planets Sandra Sanchez Abbott Elementary

6. Atmosphere • “use context clues, word structure” • Earth is surrounded by an atmosphere that protects all the plants and animals on the plant from the extreme conditions in space. • Earth’s atmosphere contains mostly oxygen, whereas Mars’s contains mostly carbon dioxide. atmosphere- the gases that surround a planet or moon Sandra Sanchez Abbott Elementary

7. Vocabulary Quiz • interplanetary • meteorite • organic • atmosphere • geologist • A _________ is someone who studies rocks on Earth or the moon. • The Earth is surrounded by a protective layer of air, this layer is called the _______. • 3. The astronauts used _________communication to inform NASA of Mars weather conditions. • 4. In an ________ college course, you would be studying the molecules of living things. • 5. What is a piece of matter from the solar system that hits a planet or the moon’s surface?__________ Sandra Sanchez Abbott Elementary