Question | Answer |
one liter is close to: | 1 quart |
one yard is close to: | 1 meter |
1 yard = | 3 feet |
bioluminescent | living thing that gives off light |
hertz | measures frequency of sound |
mushrooms, mold, mildew, yeast | fungi |
amoeba and paramecium | protists |
bacteria | monera |
instrument that measures mass | balance |
measures milliliters | graduated cylinder |
1,000 meters = | 1 kilometer |
1/100 meter = | 1 centimeter |
1/1000 meter = | 1 millimeter |
granite, pumice, basalt | igneous rocks |
limestone, sandstone | sedimentary rocks |
marble, slate, gneiss | metamorphic rock |
tin foil is: | opaque |
wax paper is: | translucent |
most plant reproduce with seeds, but ferns and mosses (and fungi) reproduce with: | spores |
2,000 pounds = | 1 ton |
32 F = | freezing point |
212 F = | boiling point |
the role an organism plays in its environment: | niche |
two objects rubbing together create | friction |
energy of motion is: | kinetic energy |
stored energy is: | potential energy |
quadrilaterals have: | 4 sides |
pentagons have: | 5 sides |
hexagons have: | 6 sides |
octagons have: | 8 sides |
the 3 angles of a triangle always add up to: | 180 |
animals hibernate, plants go into: | dormancy |
Dogs, bats and other animals can hear ________ sounds that humans cannot hear. Whales can hear lower frequency sounds. | higher frequency |
Musical instruments _____ to produce sounds. | vibrate |
An instrument that uses sound echoes to measure see the ocean floor or underwater objects is a: | sonar |
_______ is a combination of several different wavelengths of light traveling together. | white light |
The wavelengths of light from longest to shortest are red, orange, yellow, green, blue, indigo, violet. To remember this we use: | Roy G Biv |
The color light with the longest wavelength is: | red |
The color light with the shortest wavelength is: | violet |
Light travels much _____ than sound through the atmosphere. | faster |
Light travels in straight paths called: | rays |
When light bounces off an object, it is: | reflected |
When light bends, it is: | refracted |
When light passes through an object, it is: | transmitted |
Light passes easily through a window because the glass is: | transparent |
Some light can pass through wax paper. Wax paper is: | translucent |
If you cool a gas, it may _______ into a liquid. | condense |
If you cool a liquid, it may ______ into a solid. | freeze |
Clouds, dew, water droplets on the outside of a glass on a hot day, are all caused by: | condensation |
In a solid, the molecules are: | tightly packed and barely moving |
In a gas the molecules are: | moving fast and spread apart |
Living things are made of: | cells |
Using a ______ you can see many parts of a cell. | microscope |