The Earth System
What is the air around Earth called?
Atmosphere
What do we call two or more substances mixed together?
Mixture
Is tiger a carnivore, omnivore or herbivore?
carnivore
What shape is the Moon?
Sphere
What do we call a scientist who studies ecosystems: chemist, ecologist, physicist or ornitologist
ecologist
Name one of the 4 main Earth systems
biosphere, hydrosphere, geosphere, atmosphere
A molecule is made of what smaller parts?
Atoms
Where do all food molecules in an ecosystem come from?
Plants
What do we call the path Earth takes around the Sun?
Orbit
What is something you can measure with scales?
Mass/weight
When water changes from a gas to a liquid, what is it called?
Condensation
What do we call a solid that disappears into a liquid?
Dissolve / soluble
What do plants use to make food?
Water, carbon dioxide, sunlight
How long does it take Earth to go around the Sun?
1 year/365 days
What do we call proof that supports an idea?
Evidence
What is the solid part of Earth called?
Geosphere
Which tool can scientists use to separate colors in ink?
Chromatography test
Why were tigers almost extinct?
Not enough food etc
What causes day and night on Earth?
Earth’s rotation
What is the smallest part of matter that still keeps its properties?
Atom
Explain how the hydrosphere and atmosphere work together in the water cycle.
Evaporation, condensation, precipitation
Explain the difference between a mixture and a substance.
Mixture = more than one kind of molecule, substance = only one kind
Explain how energy moves from the sun to a jaguar.
Sun → plants → sloths → jaguars
Explain why we see different constellations in different seasons
Earth’s orbit changes our view of the night sky
What do you measure with cylinder?
Volume / Capacity