An example of physical change:
a. heating a brown substance until it changes into a gray powder
b. breaking an object into smaller pieces by using a hammer
What is b. breaking an object into smaller pieces by using a hammer?
100
true or false
Plant cells contain chloroplasts
What is true?
100
Compared to other stars in our galaxy what is the best description of the sun.
a. average size , average temperature
b. larger size , average temperature
What is average size , average temperature?
100
Serves as evidence for a scientific theory.
What is observations?
100
Which is not used in photosynthesis?
a. water
b. sunlight
c. nitrogen
What is nitrogen?
200
In the rock cycle igneous rocks are formed
What is when magma cools?
200
A mineral that has six-sided transparent crystals that will scratch glass.
What is quartz?
200
A toy car that is rolled down a ramp.
a. the kinetic energy increases and the potential energy decreases
b. the kinetic energy decreases and the potential energy increases
What is a. the kinetic energy increases and the potential energy decreases?
What is the correct order of the planets from the sun?
200
An animal that eats grass and that is preyed upon by a carnivore.
What is consumer and herbivore?
300
A food web diagram is shown below.
Grass Insects
Cows
Snakes
Woodpeckers Owls
A farmer adds more cows to his farm, which causes overgrazing. Based on
information in the food web, which statement correctly explains a likely result?
A Snakes will increase because of a decrease in owls.
B Insects will decrease because of an increase in grass.
C Owls will decrease because of a decrease in woodpeckers.
D Woodpeckers will increase because of an increase in insects.
2011
What is C. Owls will decrease because of a decrease in woodpeckers.
300
Rattlesnake, coyote, eagle
What are predators?
300
Many power plants and factories
release warm water into streams.
As the temperature of the water in
the streams increases, the amount
of oxygen in the water decreases.
The higher temperature also causes
the rate of cellular respiration to
go up for organisms that live in the
streams.
Which effect is the most likely result
of these changing water conditions?
A Animals living near the streams
will consume less food.
B The number of aquatic plants in
the streams will decrease.
C Aquatic plants living in the
streams will require less carbon
dioxide.
D The number of fish in the streams
will decrease
What is D The number of fish in the streams
will decrease
Daily Double!!!
300
Weathering helps to turn rocks into soil. Rocks weather fastest
What is Under or in wet conditions with hot
daytime and below-freezing
nighttime temperatures?
300
This happens during
photosynthesis.
What is plants change light energy
into food energy?
400
Dawn brought a chocolate bar for
lunch, but the chocolate melted in her
backpack. Dawn wants to perform a
scientific investigation to determine
the reason her chocolate bar melted
in her backpack.
Which hypothesis should Dawn use
for her investigation?
A Chocolate will taste better when
melted.
B Chocolate will taste the same even
when melted.
C If heat is added to chocolate then
the chocolate will melt.
D If the chocolate is broken then the
chocolate will melt.
What is C If heat is added to chocolate then
the chocolate will melt?
Triple !!!!!!!!!!!!!!!!!
400
A property of the mineral that can be
identified using this test.
What is fluorescence?
400
An example of a physical
property of an object?
A The object bends without
breaking.
B The object bubbles.
What is A the object bends without
breaking?
400
The 3 common states of matter.
What are solid, liquid, and gas?
400
True or False
Light bends when it enters new material at an angle.
What is true?
500
A characteristic of
sedimentary rock?
A contains fossils
B glassy texture
C high hardness
D shiny silver luster
What is A contains fossils ?
500
The temperature in a hot star is high
enough to pull electrons away from
atoms.
A state of matter results from
this process.
What is plasma?
500
Which of these best demonstrates the
characteristics of science?
A One student lifts a rock and skips
it across a stream.
B One student thinks about rocks
and writes down his opinion.
C Two students study a rock and
then compare their observations.
D Two students remove rocks from a
garden and then plant flowers
What is C two students study a rock and
then compare their observations?
Daily Double
500
True or False
The properties of atoms determines the property of matter.
What is true?
500
Instruments used to collect information about the planets in the solar system.