Download 2013 Question of the day

th
7
Grade Life Science
Daily Science Questions
Part Two
Jan. 7 – 2.4.2

To see an
object, light from
the object must:



A) Be reflected
by the eye
B) Be scattered
by the eye
C) Enter the
eye

Answer:

C) Enter the
eye
Jan. 8 - 2.4.2

What part of the
eye controls the
amount of light
that enters the
eye?



A) The cornea
B) The iris
C) The pupil

Answer:

B) The iris
Jan. 9 – 1.1.4

A student reports
the results of an
experiment as “salt
dissolves in water”.
What other
experimental
information could
be reported to
improve the
investigation?

Answer:



Quantities of
salt and water
Use two
temperatures of
water
Determine how
much salt will
dissolve in a
specified
quantity of
water
Jan. 10– 1.3.2

Your group
conducts an
experiment testing
the effect of light
on plant growth.
One plant was
placed under a
window and one
was placed in the
refrigerator. A
classmate tells
your group that
you didn’t conduct
a fair test. Explain
what was wrong.

Answer:

The plant that
was placed in
the fridge was
exposed to two
variables, light
and
temperature.
Jan. 11– 1.1.2

The amount of
calories in our
food is of
concern to
many people.
What does a
calorie
measure?

Answer:

One calorie is
the amount of
energy needed
to raise the
temperature of
1 gram of water
by 1 degree
Celsius
Jan. 14– 1.1.1

You are designing an
experiment to answer the
following question: “Do
plants grow faster in the
dark or in the light?”
Which of the following is
the best hypothesis?



A) We are going to test
whether or not light has
an effect on plant
growth.
B) There is no
difference in the rate of
plant growth in the dark
or in the light.
C) Plants growing in the
light will grow faster
than plants growing in
the dark.

Answer:

B) There is no
difference in the
rate of plant
growth in the
dark or in the
light.
Jan. 15– 1.1.4

You perform an
experiment to answer this
question: “Will the size of
a sponge determine the
amount of water it can
hold?” Which of the
following is the better
statement of the
hypothesis?


A) There is no
difference in the amount
of water held by
sponges of different
sizes.
B) The amount of water
that can be held by a
sponge increases as the
size of the sponge
increases.

Answer:

A) There is no
difference in the
amount of water
held by
sponges of
different sizes.
Jan. 16– 1.1.1

You perform an
experiment to answer this
question: “Will a
Styrofoam or a metal cup
keep a liquid hotter?”
Which of the following is
the better statement of
the hypothesis for this
problem?


A) The liquid in the
Styrofoam cup will stay
hotter than the liquid in
the metal cup.
B) The temperature
changes of a liquid in a
Styrofoam and a metal
cup are the same.

Answer:

B) The
temperature
changes of a
liquid in a
Styrofoam and
a metal cup are
the same.
Jan. 17 – 4.1.1

Name the three
layers of the
Earth.

Answer:



Crust
Mantle
Core
Jan. 18 – 4.1.2

When rocks and
rock sediments are
melted, they form
magma which is
melted rock deep
in the Earth. As
the magma cools it
forms crystals and
becomes an
example of what
kind of rock?



A) Igneous
B) Metamorphic
C) Sedimentary

Answer:

A) Igneous
Jan. 22 – 4.1.2

Magma that cools
on the Earth’s
surface does not
form large crystals.
Which of these is
an igneous rock
that cooled on the
surface?



A) Granite
B) Limestone
C) Pumice

Answer:

C) Pumice
Jan. 23– 4.2.1

Land forms are
the results of…



A) Constructive
forces
B) Destructive
forces
C) A
combination of
both

Answer:

C) A
Combination of
both
Jan. 24– 4.2.1

Tell which of these
forces are
constructive and
which are
destructive in the
creation of land
forms.



A) Crust
deformation &
deposition
B) Erosion &
volcanic eruption
C) Deposition of
sediments

Answer:


Destructive Forces
–
B) Erosion &
volcanic eruption
Constructive
Forces –
A) Crust
deformation &
deposition
C) Deposition of
sediments
Jan. 25– 4.3.1

What
percentage of
the Sun’s rays
reach the
Earth’s surface?



A) 98%
B) 66%
C) 35%

Answer:

B) 66%
Jan. 28– 4.3.1

What causes
34% of the
Sun’s energy to
turn back into
space?

Answer:



The ozone layer
Clouds
Dust in the
atmosphere
Jan. 29– 4.1.2

When rocks or
rock sediments
melt and cool
quickly they
form what type
of rock?



A) Metamorphic
B) Sedimentary
C) Igneous

Answer:

A) Metamorphic
Jan. 30– 4.1.2

Name three of
the processes in
the rock cycle.

Answer:




Hardening
Application of
heat and
pressure
Melting
Weathering
Jan. 31, 2013

What is
systemic
circulation?

Blood that
travels from the
heart to the
body
Feb. 1, 2013

What must
happen to a
rock before it
becomes
magma?

Answer:

It must melt
Feb. 4– 4.1.1

True or False:
The atmosphere
has the same
properties at all
elevations.

Answer:

False
Feb. 5– 4.1.1

How is the
atmosphere
different at
different
elevations?

Answer:



Temperature
Pressure
Composition
and
concentration of
gasses
Feb. 6– 4.1.1

What effect does
the ocean have on
land temperature,
such as Hawaii?

Answer:

Ocean temperature
doesn’t change at
night so the land
temperature
doesn’t change
drastically.
Climates near the
ocean are
generally milder
than those further
inland.
Feb. 7– 4.1.1

Name two major
gases that occur
in the
atmosphere.

Answer:


Nitrogen
Oxygen
Feb. 8– 4.1.1

Yes or No: Is
the troposphere
(the first layer of
the atmosphere)
the same depth
all the way
around the
Earth?

Answer:

No. The
troposphere is 5
miles thick at
the poles and
12 miles thick at
the equator.
Feb. 11– 4.1.1

How does a tree
affect the
composition of
gases in the
atmosphere?

Answer:

A tree releases
oxygen (day),
carbon dioxide
(night), and
water vapor
(day) into the
air.
Feb. 12– 4.1.2

How do living
organisms
contribute to the
weathering of
rocks?

Answer:



People and
other animals
crush the rock
as they walk
Plants as the
grow
Urbanization
Feb. 13– 4.1.2 30

True or False: The
Earth processes
we see today
(such as erosion,
building of land by
volcanoes, and the
movement of the
plates of the Earth)
have always
occurred.

Answer:

True
Feb. 19–

What layer of
the atmosphere
has been
damaged over
the past 50
years because
of fossil fuel and
CFC usage?

Answer:

Ozone
Feb. 20– 1.1.1

Which question is worded
in a way that can be
answered by a scientific
investigation?




A) Can frogs jump better
than grasshoppers?
B) Was Einstein the
greatest scientist of all
time?
C) Have people really
been abducted by
aliens?
D) If you feed a plant
“Miracle Grow” plant
food, will it really grow
taller, like the TV
commercial claims it
will?

Answer:

A) Can frogs
jump better than
grasshoppers?
Day. Feb. 21
Does energy flow
from warm
objects to cool
or cool to
warm?

Warm objects to
cool
Day. Feb. 22

A independent
variable is

A dependent
variable is

Variable that
causes the
change

A variable that
is measured
Day Feb. 25

What is the
highest
elevation and
the lowest in
USA?

Mt. Mc Kinley,
AK

Death Valley,
CA
Day Feb. 26

What connects
the arteries to
the veins?

Capillaries
Feb. 27

What are the
four blood
types?




A
B
AB
O
Feb. 28

Why is Blood
type O the
universal donor?

Because it has
no antigens on
it and can give
to other blood
types.
March 1

What are the 7
colors of the
spectrum?







Red
Orange
Yellow
Green
Blue
Indigo
Violet
Day 78 March 5

What is the
organ that is
responsible for
circulating the
blood?

Heart
March 6
Mid-ocean
ridges and rift
valleys are
located at what
type of
boundry?
A:Divergent
B: Subduction
C:Convergent


A: Divergent
March 7





A convergent
boundary will
usually form:
A canyons
B mountains
C plateaus
D valleys

Mountains
March 8

Earth’s tectonic
plates are found
on what layer of
the earth?
Lithosphere,
Crust
Inner
core
Outer
core

Lithosphere,
Crust
March 11

Why do
earthquakes
occur?

Plates slide past
each other
March 12

Which of these
is the largest?

Red giant star
Supernova
Solar system
galaxy




galaxy
March 13





Which trait is
not inherited?
Color-blindness
Eye color
Influenza
Ear lobe shape

influenza
March 14
Most frontal
systems and air
masses in the
US move from
 North to south
 East to west
 South to north
 West to east

West to east
March 15




What tide
happens when
the moon and
the sun and
earth are all
lined up?
Low tide
High tide
Shortest tide

High tide
March 25





If air moves
from the high
pressure to low
pressure the
result is:
Wind
Front
Rain
humidity

wind
March 26





What direction
do ocean
currents flow
from the US to
the equator?
North to south
South to north
East to west
West to east

North to south
and back again
March 27





What kind of
joint do you
have in your
elbow?
Fixed
Hinge
Pivot
gliding

Hinged
March 28





How many
bones are in
your body now
that you are
almost an
adult?
260
206
266
350

206
March 29





What is the
name of the
bone that has
many open
spaces?
Red marrow
Yellow marrow
Fat
blood

Red marrow
April 1

Name two parts
of the human
body that have
cartilage.




nose
Ears
Knee caps
Between any
bones
April 2





Which of the
following cannot
reproduce
asexually?
Owl
A willow tree
An amoeba
A paramecium

owl
April 3





Which part of
the water cycle
occurs after
condensation
and before run
off?
Infiltration
Evaporation
Precipitation
transpiration

precipitation
April 4




What does it
mean if a plant
grows
thermotropic?
Grows to heat
Grows to
minerals
Grows to
nitrogen

Grows to the
heat (thermo)
April 5





Newton’s first law of
motion states an object
at rest will remain at rest
and an object in motion
will stay in motion.
Which situation helps us
to understand Newton’s
first law?
A puck will continue on
the ice until it stops.
A swing will continue to
go back and forth until
friction makes it stop.
Both are examples

Both are
examples
April
A _____ prevents
the expression
of another gene.
Dominant gene
Recessive gene
Trait
commonality

Dominant gene