characteristics of matter section 2.1-2.4
change of gas to a liquid
condensation
sounds travel fastest in
a. solids
b.liquids
c. gases
d. empty spaces
solids
a force is a ____ or a ______
push or pull
which is FALSE about plants
a. plants can move from place to place
b. plants make their own food
c. plants absorb energy from the sun
d. plants use photosynthesis
a . plants CANNOT move from place to place
which is FALSE about producers
a. make their own food
b. eat other organisms to get energy
c. capture light energy to perform photosynthesis
d. usually green
b. producers (plants) MAKE their own food
combination of at least two substances that are not joined together
mixture
sound waves travel slowest in gases because particles in gases are
a. solids
b. far apart
c. same as in solids
d. same as in liquids
b. far apart
a. friction caused by air is called ______
b. friction changes _____ energy into _____ energy
thermal(heat energy)
mechanical
air resistance
a.air resistance
b. mechanical thermal
which is FALSE about animals
a. animals are consumers
b. an example of an animal is a lion
c. animals can make their own food
c . animals CANNOT make their own food
organisms that eat other organisms to get energy are
CONSUMERS
true or false
the solvent dissolves in the solute
False. The solute dissolves in the solvent.
a. fast vibrations produce sound waves that has a _____ frequency
b. slow vibrations produce a sound wave that has a ____ frequency
low high
a. high
b. low
a. friction helps car tires _____
b. brakes use friction to ____
c. friction between your shoes and the ground keeps you from _______
a. grip the road/ not slip
b. slow down/stop
c. slipping when walking
1. Describe how classification is helpful to scientist |
Classification helps scientists identify an unfamiliar organism.
It also helps scientists determine if organisms are related to each other.
scientists in different parts of the world are talking about the same organism
classify each animal as herbivore, carnivore, omnivore
a. human
b. elephant
c. spider
d. bear
e. lion
bears; eat fish and plants
spiders: eats other bugs
elephants; eat plants
a. omnivore
b. herbivore
c. carnivore
d. omnivores
e. carnivores
describe the particles in a gas (answer should have 2 parts)
far apart and move freely
word bank : frequency highness lowness higher
a. pitch is the _____ or _______ of a sound
b. pitch depends on the ______ of the sound wave
c. the shorter and thinner the string of a musical instruments is, the ______ its frequency
a. highness or lowness
b. frequency
c. higher
fill in the blanks with the most appropriate words
gravity magnetism friction
a. a skydiver is pulled toward Earth by
b. _______ between a skydiver and the air resists the falling motion
c. _______ does not push or pull a skydiver
a. gravity
b. friction
c. magnetism
which is false about classification ?
a. scientists classify organisms based on similarities
b. classification helps scientists identify unfamiliar organisms
c. classification helps show if organisms are related to each other
d. whales are classified as fish because they have gills
d. whales have lungs
what role does the sun have in a food chain, why is the sun important
source of energy /makes things grow such as nutrients food
a. ______ a solid causes the particles to move faster
b. _________ is the change from solid to liquid
c. _____ is the change from liquid to solid
d. the particles become locked in place and liquid changes to a _______
heating solid liquid melting freezing
a. heating
b. melting
c. freezing
d. solid
fill in the table by classifying the sounds in the categories below: 2 in each
plane taking off, growling quietly, whistling loudly, baby bird chirping
high pitch:
low pitch:
high volume:
low volume:
high pitch :whistling loudly ,baby bird chirping
low pitch: growling quietly, plane taking off
high volume : whistling loudly, plane taking off
low volume: growling quietly, baby bird chirping
fill in the blanks with the most appropriate words:
negative positive push pull noncontact magnetic poles
a. magnetism is a ______ force
b. magnetism is strongest at the _______
c. a a magnet has two poles, a ______ pole and a _____ pole
d. magnetism acts only on ______ material
e. opposite poles of magnets ____ each other, like poles, ____ each other
a. noncontact
b. poles
c. positive negative
e. magnetic
f. pull push
fill in the blanks with the appropriate words:
naming related structure identify classifying
a. scientists classify organisms based on similarities in ________
b. classification helps scientists determine whether two organisms are _______
c. classification helps scientists _______ unknown organisms
d. scientists can know they are talking about the same organism by _______ and _______ it.
a. structure
b. related
c. identify
d. classifying naming
make a food chain using the following animals:
shark whale algae sea turtle
algae gets eaten by the sea turtle
sea turtle gets eaten by the shark
shark gets eaten by the whale