 | Term | Definition |
| |
recognizing and identifying the problem |
Which of the following steps to solve a problem must be completed first? |
| |
models |
___ can save time and money by testing ideas that would otherwise be difficult to test quickly or easily. |
| |
a hypothesis |
A prediction or statement that can be tested is ___. |
| |
their results are more likely to be reliable |
Scientists conduct multiple trials of their experiments because ___. |
| |
computer |
One tool that can be used to display your data is a ___. |
| |
day |
Earth spins on its axis, and one rotation takes about one __. |
| |
axis |
The imaginary line drawn from the north geographic pole to the south geographic pole is called earth's ___. |
| |
rotation |
___ causes earth to have day and night. |
| |
new moon |
The phaxe of the moon that you cannot see is ___. |
| |
summer solstice |
The longest day of the year in the northern hemisphere is the ___. |
| |
once |
It takes the moon 27.3 days to rotate ___ on its axis. |
| |
solar |
When earth moves into the moon's shadow, the result is a ___ eclipse. |
| |
metals |
All ___ except mercury are solids at room temperature. |
| |
good conductors of heat |
In general, metals are ___. |
| |
heterogeneous mixture into a homogeneous mixture |
When someone stirs cocoa powder into hot water or hot milk, the cocoa changes from a ___. |
| |
physical property |
The measurement of an object's mass is a ___. |
| |
chemical property |
The ability of an apple to change color when exposed to air is a ___. |
| |
physical property |
The ability of a pond to freeze over in winter is a ___. |
| |
the release of energy |
Which of the following is NOT a possible sign of a physical change? |
| |
melting ice, mowing the lawn, carving a statue |
Three examples of physical change are ___. |
| |
0.5 m/s |
A soccer ball takes 20 to roll 10 meters. What is the average speed of the soccer ball? |
| |
0 m/s |
When an object s at rest, what is its speed? |
| |
inertia |
A person in a head-on car collision who is not wearing a seat belt continues to move forward at the original speed of the car because of ___. |
| |
unbalanced force |
Newton's first law of motion states that an object stays at rest unless a(n) __ acts on it. |
| |
a push or pull |
A force is which one of these? |
| |
newtons |
Force is measured in which units? |
| |
the work out |
For an ideal machine, the work in is equal to ___. |
| |
lever |
A(n) ___ is a rod or plank that pivots about a fixed point. |
| |
many forms |
Energy occurs in ___. |
| |
potential energy |
A rock sitting on top of a cliff has ___. |
| |
endothermic |
Which type of chimical reaction needs to absorb energy to proceed? |
| |
diploid |
A cell that has two of every kind of chromosome is ___. |
| |
23 |
Each human skin cell has ___ pairs of chromosomes. |
| |
alleles |
A punnett square shows you all the ways in which ___ can combine. |
| |
hybrids |
Mendel called plants that received different alleles for a trait from each parent ___. |
| |
cystic fibrosis |
Which of these is a recessive genetic disorder? |
| |
dominant |
In a punnett square, a capital letter stands for a ___ allele. |
| |
tt |
Of the following, which represents a homozygous recessive genotype? |
| |
coronary artery |
Of the following, which is NOT involoved in pulmonary circulation? |
| |
four |
The heart of a human contains ___ chamber(s). |
| |
cells, cell fragments, liquid |
Blood is a tissue that consists of ___. |
| |
digestion |
Of the following, which is NOT a function of blood? |
| |
skin and lungs |
Besides your urinary system, what other organs in your body help in excretion. |
| |
water pollution |
Of the following, which is NOT directly related to respiratory problems? |
| |
kidney failure |
Of the following, which is NOT a disorder of the respiratory system? |
| |
air moves into and out of lungs |
Breathing is the process in which ___. |
| |
pressure |
Breathing is partly the result of changes in air ___. |
| |
cereal |
Of the following, which does NOT belong to the milk group? |
| |
fat |
Which of these is not a carbohydrate? |
| |
pancras |
Of the following, which organ does food NOT pass through? |
| |
water |
Besides carbohydrates, proteins, fats, vitamins and minerals, what other nutrient does your body need for life? |
| |
liver damage |
Which of the following would MOST directly affect the operations of the digestive system. |
| |
pores open to let bacteria in |
Which of the following is NOT a way that skin protects the body? |
| |
pivot, ball and socket, hinge |
Of the following, which is a type of movable joint? |
| |
produces vitamin d |
Of the following which is NOT a function of the skeletal system? |
| |
in pairs |
Skeletal muscles always work ___. |
| |
intestine |
Of the following, which is NOT a sense organ? |
| |
spinal cord |
Reflex responses are controlled in you ___. |
| |
walking on a sandy beach |
Of the following, which is NOT a reflex response? |
| |
brain stem |
The spinal cord is an extension of the ___. |
| |
voluntary actions |
Of the following, which is NOT controlled by homeostasis? |
| |
exposed coral reef |
All of the following are likely areas for secondary succession EXCEPT ___. |
| |
using solar panels, recycling plastic bottles, ridding the environment of harmful pollutants |
Which of the following would help conserve natural resources? |
| |
natural gas |
Which of these sources of energy is NOT renewable? |
| |
geothermal energy |
Of the following, which is a renewable energy resource? |
| |
wood |
All of the following are fossil fuels EXCEPT ___. |
| |
reduce, reuse, recycle |
The three R's of conservation are __. |
| |
carbonic acid |
All of the following cause mechanical weathering EXCEPT ___. |
| |
warm, wet |
Chemical weathering is more rapid in a ____ climate. |
| |
reduce |
When people plant vegetation, they ___ erosion. |
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