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A chemical reaction involves
Both the release and absorption of energy
Which of the following is an example of an element?
Carbon
Atoms of the same element that differ in the number of neutrons are called?
Isotopes
The lowest temperature in Celsius degree is
approximately 273 degrees below zero
Which force is related to the concentration of a bungee cord?
elastic
Power is calculated by the following formula: Power=Force x Distance
-----------
Time
Two trucks engines (engine A, engine B) transport equal loads the same distance, Engine A transports the load in one hour while engine B requires two hours, Which is correct?
engine A has twice the power of engine B
The apparent change in frequency when the sound source approaches an observer is referred to as
Doppler effect
Which of the following is produced by virtual image upright and smaller than the actual object viewed but is unable to form a real picture?
convex lens
The speed of light is
The same as the speed of X-Ray
Static electricity is formed by the transfer from one object to another by the
Electrons
When a bulb burns out in an electronic circuit all of the other bulbs also go out. This is an example of what type of circuit?
Series
A force exerted by a magnetic field on the current in a wire acts in the direction
perpendicular to the direction of the current and magnetic field
The heat transfer process of conduction is defined as the
transfer of energy from atom to atom in a substance through collusion
Traces of galleries in certain parts of Asia, Africa, India, Australia, and Antarctica support the theory of
Continental drifts
Fossils of seashells formed along a mountain ridge most likely indicate that:
This portion of the earths crust was once part of the ocean flow and move as a result of crustal plate movement
Using the map bellow, what is the approximate latitude and longitude of Miami?
26 Degrees North, 80 Degrees West
Pre-existing rock that is transformed by the high heat and/or extreme pressure into new rock is called:
Metamorphic
In general compared to the air surrounding it, the temperature of a high pressure system is
Warmer
Which soil sample on the table below will produce aquifer with the highest water quality?
Soil Sample: A, B, C, D
Time (in min) to permeate: 2 6 10 42
D
The color of a star is determined by
Temperature
Conducting certain kinds of scientific research on the growth of crystals is facilitated on orbiting space station because the
objects are relatively weightless
The earths ocean tides are directly related to:
The Moon
A crystal is considered non-living organism because
It does not respond to stimuli
A sexually transmitted disease in humans that is caused by a bacterium is
Gonorrhea
Production of energy in cells occurs primarily in the
Mitochondria
Which part of the reproduction process is more appropriate to include in a 3rd grade cirriculum?
Pollination
The life cycle of a butterfly is an example of?
Complete Metamorphosis
In the process of mitosis, chromosomes are doubled and lined up during
Interphase
In most eco-systems, bacteria and fungi play an important role as
decomposers
A cause of the increasing volume of UV rays from the sun in recent years is
Break down of ozone in the stratosphere by chemicals released on earth
Viceroy, King and Monarchs resemble each other. Although the monarch is the only one poisonous, most birds avoid all three species. This represents which type of adaptations for the birds.
Avoidance
Which of the following will reduce the use of solid waste land use?
Making a compost pile
What process is used to group chemicals according to their physical properties?
Observing
Determine the mass that is showing on the scale below?
182.5 Grams
A 3rd grade teacher is exploring the concept of control and variable in a Science experiment. The class decides to grow plants as a part of this unit. Which set of variables is the most realistic to control in the classroom?
Light, Soil, Water
Which device will best measure the pull of gravity on a rock?
Gravimeter
Which is a safe storage technique?
store no chemical above eye level
The instrument that could be used both to guide satellites and to provide accurate measurements is the
laser
Given assignment of using the computer to prepare a list of geographical locations, where can one find examples of fossilized substances?
Perform a search using one of the internet search engines
A science fair project has generated extensive numerical data. Which kind of computer software program would keep track of the figures and help work out all the calculations?
electronic spreadsheet software
A 5th grader will document changes in their schools environment for a year. The most manageable tool for the students to document these changes will be
Charts and graphs
Some media centers are capable of conducting face to face meetings by using
Teleconferencing
Which of the following software copying practices is legal (absent a side license)?
Distributing copies to departmental faculties
Which of the following is an examples of compound?
salt
Atoms of a given element that differ in number of neutrons are called>
Isotopes
The measurement used to determine the warmness or coldness of a body is called?
Temperature
Which type of simple machine is used when a screw driver is used to open a gallon of paint
Lever
The purpose of a convex lens in the eye piece of a reflecting telescope is to
converge the light rays so that they will be directed to the eye
At some junk yards, a large metal disk suspended from a crane is used to hoist an entire automobile. This disk combines the power of magnetism with
Electricity
Hawaiian Islands are examples of
Island Building occurring over a hot spot in a plate
Thunder showers usually accompany the arrival of what kind of front?
Cold
A way to reduce run off on land is to increase:
Plant Vegetation
Which is the best way for a second grade teacher to help students understand what causes day and night?
Get a globe, a piece of clay, and a light source. Stick the clay on the city where the students live, and rotate the globe while holding the light still. Have the student determine which position in the rotation represents day or night for the piece of clay
Many antibodies that are beneficial for humans are produced
By molds
During plant growth unit, students place one group of plants in the sun and another group of plants in the dark. This experiment demonstrates
Photosynthesis
Which of the following represents the flow of blood flow from the left ventricle to the right atrium?
Aorta, Arteries, Capillaries, Veins, Vena CAva
Coral reefs near Florida's shore line and other areas of the world are threatened by pollution and many are said to be in danger of extinction. What process is occurring?
Coral reefs need cooler water temperatures. Because of pollution, the temperature of the ocean is rising, endangering the habitats necessary for the coral reef polyps to reproduce.
Why is recycling aluminum desirable?
Less energy is required by recycling aluminum than producing aluminum from ore.
What instrument detects radioactivity?
Geiger counter
Which of the statements below appropriately describes their conditions of science and/or technology in our society today
I. Science has had both positive and negative influence on societal decision
II. Moral and ethical beliefs of individuals determine the way in which science is applied
III. The controversy over controlling or not controlling what phase of Science to study has been settled
IV. Advances in Science and technology have made it unnecessary to cub human population growth
I and II
Teachers from several schools around the state would like to meet after school once a month to education issues. Which mechanism would be most effective in stimulating interest and simultaneously providing immediate response to each other?
Web Page
A second-grade student receives an interactive computer game that helped her dramatically improve her mathematics skills and understanding. For a teacher to ethically incorporate these games into lessons for all his students, he should:
Purchase a side license for his class so that the game can be loaded on several computers for all students to use. i
Which of the following describes the mass of an electron?
It is equal to the mass of a proton
A second grade teacher wants to know the principle of invisible energy. What materials will she need?
Magnet and Iron fillings
If a vibrating cord anchored at each end is shortened in length with tension remaining constant one would notice an apparent
Pitch Increase
Which of the following is generally associated with causing common sun burns?
ultraviolet rays
A power plant uses heat to generate electricity. The heat is produced by fission on 28 grams of uranium ore which is equal to 60 metirc tons of coal. The main form of energy used in the power plant to generate electricity is
Nuclear Energy
Fossil remains of a certain species found in Africa and South America in deep layers of bed rock would indicate that the rock is
of similar age
Marble, Serpentine, and Schist are examples of which kind of rock?
Igneous Rock
In the hydrologic circle, which of the following events occurs in the process of transpiration?
water is released into the air
How does the sun compare with the average star?
Higher in temperature and in luminosity
Waning moon is-as it appears to?
becoming smaller
An activity considered necessary for continuation of an organism's life is
Reproduction
What is the function of the mitochondria?
release of energy
In the human brain, which of the following is closely associated with motor control?
Frontal lobe and cerebellum
Atmospheric ozone depletion by fluorocarbons would
Allow more ultraviolet radiation to reach the surface of the eath
What microorganism produces the "red tide" in Florida's gulf waters?
Dinoflagellates
Mark and Tricia conducted a project in their physical science class. They recorded the temperature of container of water each minute for 5 minutes. Their recordings are shown below with time and corresponding temperature: 1 minute: 20C, 2 minutes: 24C, 3 minutes: 27C, 4 minutes: 31C, and 5 minutes: ___*C?
34
A first grade teacher is planning a classification activity with a variety of un shield nuts. According to Jean Piaget's theory of intellectual development, which of the following directions to the students would be most appropriate?
Group all the nuts that are identical together
A teacher is giving state adapted instructional materials that include knowledge of activities using chemicals. Which of the following is the right assumption of the teacher?
The chemicals are appropriate for the grade level for which the instructional materials are used
A teacher must compile information on each of his students, such as phone numbers, addresses, parent, special courses, and exceptionalities. Which of the following could be most efficiently used to record this information, story it over time, and make changes and updates?
Spread sheet
What advantage can peer drill programs have over expert practice activities?
Identifying and reinforcing weak areas
In chordates, the structure which transport oxygen to cells are
Red Blood cells
The surface of a concave mirror is
curved inward
An iron bar placed inside a curved coil of wire to increase the magnetic field intensity produces
Electro-magnet
A major occurrence of in the 1st state of the process of cellular respiration of carbohydrates as it occurs in higher organisms is
Oxygen Production
Planets appear brighter than the starts because planets are
closer to the earth than stars are
Which portion of the electromagnetic spectrum is invisible to the human eye and had the longest ware length?
UV
Which of the following is the most common agent of erosion in Florida today?
Waves
Which of the following provide for keyword use in internet information retrevial?
search engine
A student performed the following experiment
I. Measure the temperature of 100mL of water
II. Add 3 glasses of baking soda and stir for 10 seconds.
III. Measure the temperature of the water again.
The students collected the following data:
Beginning Temp: 30 Ending Temp: 25
Which of the following is the interference that could be drawn from the experiment?
A chemical reaction took place
Air movement in which warm, less dense air raises and cooler, denser air replaces it are called
Conventional currents
Which portion of the atom has the greatest density ?
The nucleus
What is a drawback of to the frequent use of a computer drill program?
Students would not have to learn to read instruction
What is the length of the block to the nearest 10th of a centimeter?
4.6
After a light bulb is placed in the center of a 3rd grade classroom, Ms. Smith slowly circles the room with a globe. She is most likely demonstrating which experiment
Rotation
Several bulbs are lit in an electric circuit. One bulb is removes and all the light bulbs go out. What type of circuit is this?
series
A research project involves gathering information on living and extinct primates. As the information becomes more complicated they type of organizational soft-wane needed is
Data based software
The discovery of giant boulders that are different from bedrock in which they rest has been used to demonstrate the presence of which type of geological function
Glaciations
Many municipalities prohibit disposal of batteries in trash what would be burned in the land field because
Some of the battery acids and heavy metals may seep through the soil and contaminate the ground water supply