A chemical reaction involves
Both the release and absorption of energy
Which of the following is an example of an element?
Carbon
Atoms of
... [Show More] 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 [Show Less]