6th Grade Science Exam3

A wave bounces off of a barrier and flips upside down. What has occurred?

• a. infraction

• b. refraction

• c. reflection

• d. diffraction

Which is a frozen mass with a tail of trailing gases?

• a. meteor

• b. a comet

• c. mercury

• d. venus

Which planet orbits the sun in the greatest amount of time?

• a. Earth

• b. Neptune

• c. Mercury

• d. Venus

Styrofoam is a good example of which of the following?

• a. thermal insulator

• b. thermal conductor

• c. electrical conductor

• d. none of these

What do seismic waves transit?

• a. energy from vibrations

• b. energy from sunlight

• c. noise from echoes

• d. noise from collisions

What compound do plants produce from sunlight to use as food?

• a. Water

• b. Glucose

• c. Sunlight

• d. Oxygen

In which situation would dormancy most likely occur?

• A. A seed does not yet have favorable conditions in which to grow

• b. A seed has ideal conditions for growth

• c. sunlight is readily available

• d. none of these

Chlorophyll is apigment in plants that allows them to more easily

• a. Absorb water for the process of photosynthesis

• b. Absorb water for the process of respiration

• c. Absorb sunlight for the process of photosynthesis

• d. Absorb sunlight for the process of respiration.

How do most producers take sunlight energy and convert it into usable energy for themselves and other organisms in a habitat?

• a. through the process of metabolism

• b. through the process of aerobic respiration

• c. through the process of anaerobic respiration

• d. through the process of photosynthesis

How does the heat of the Earth's core affect the surface of the Earth?

• a. The core's heat provides the atmosphere with its heat

• b. Core's heat is passed around the Earth through Earthquakes

• c. The core's heat is passed to the crust, which expels it during lava eruptions

• d. Core's heat is passed into the mantle, which creates convection that moves the crust