General Science Flashcards
Which of these is the best explanation of how a smooth round stone became smooth?
In the river for a long time
When a lobster grows a claw to replace one that was lost, the process is called
Regeneration
Any astronomical body that revolves around a larger body is called
Satellite
Which element does NOT contain any neutrons?
Hydrogen
In chemistry, to be classified as an organic substance, a substance must contain.
Carbon
The chemical formula of a compound describes the elements the compound contains and the
Ratio of elements in the compound
What is the symbol for the hydroxyl ion?
OH-
Which of the following is a renewable resource?
Peanut Oil
Regeneration in man is limited to
Healing wounds
When scientists measure a liquid’s resistance to flow, they are measuring the liquid’s
Viscosity
When sodium atoms form sodium ions, they
Lose electrons
A perpetual-motion machine can never be built because it is not possible to eliminate
Friction
The filament in an electric light bulb is made from
Tungsten
A human skin cell divides by
Mitosis
To test the effectiveness of plant fertilizer groups of plants are grown with different types of fertilizer. A control group of plants would…
Not use any fertilizer.
Friction is the force that
Opposes motion between two surfaces
if you place bean seeds between moist paper towels and watch the stem leaves appear you will see a demonstration of
Germination
which of the following is the best illustration of centripetal force?
ice skater spinning on ice
which of the following reproduce by spawning
Fish
by definition, an aquifer is
River bottom is made up of gravel and sediment rocks/Rock that carries water
Homo sapiens is.
Human
a genus classification contains several related
Species
Capillary action
the attraction of the surface of a liquid to the surface of a solid
As an object sinks In Water the pressure exerted on the object
Increase
Meiosis
cell division that produces reproductive cells in sexually reproducing organisms.
Stars are made up by mostly:
Hydrogen and Helium
In a balanced ecosystem, which of the following would have the greatest population?
Plankton
According to their locations on the periodic table, Argon (Ar) and Neon (Ne) are?
Noble Gases
Using the list, which of the following presents the stages of the water cycle in the correct order?
- Water vapor cools
- Precipitation occurs
- Evaporation occurs
- Condensation occurs
- Sunlight heats pond water
- Sunlight heats pond water
- Evaporation,
- Water vapor cools
- Condensation
- Precipitation
Air is first warm and filtered in the:
Nasal cavity
Water droplets forming on the inside of a cold windshield is an example of?
Condensation
Particles that orbit the nucleus of an atom are:
Electrons
What do hydrogen molecules and oxygen molecules have in common?
The charge of each electron
Tympanic membrane:
Ear drums
A period of time is usually measured by
Calendar Based
What is germination?
the Sprouting of the seed
Choking is presented by the
Esophagus covering the voice box
Which of these undergoes metamorphosis?
Butterflies
39.Which of the following actions produce a chemical change?
A. Boiling water
B. Burning the rice
C. Adding salt to the water
D. Melting butter on cooked rice
B. Burning the rice.
40.Which of the following is a nonrenewable resource
A. Wood
B. Water
C. Copper
D. Biomass
C. Copper
