Smithsonian Science

Bacteria and fungi that work for the decay of dead organisms

• Primary consumer

• Decomposer

• Producer

• Parasite

Tags

NGSS.MS-LS2-3

A mixture of a solute and solvent, is said to be

• suspension

• saturated

• solution

• all of the above

Green plants produce carbon dioxide during

• Night time

• Evening

• Day time

• none of the above

The speed of light in a air

• 575 km/sec

• 489 km/sec

• 298 km/sec

• 300 km/sec

Two substances with different boiling points, can be separated by

• filtration

• distillation

• evaporation

• sublimation

Fungus and alga live together and benefit each other

• Mutualism

• Commensalism

• Vulture

• Parasitism

More elements and compounds with no chemical reactions involved

• Molecule

• Compound

• atom

• Solution

Tags

NGSS.MS-PS1-1

The loudness of sound is

• oscilloscope

• pitch

• Amplitude

• soundwave

Tags

NGSS.MS-PS4-1

60g of solute in 100 g of solvent will give

• 160g solution

• 16g solution

• 6g solution

• 1600g solution

The hammer, anvil and stirrup are the three tiny bones found in

• ear lobe

• eardrum

• middle ear

• pinna