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8th grade Science
What is Saturation
Outcome variable is
8th grade Science
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1
Outcome variable is
The variable that remains constant throughout the experiment
The variable that is used as a control for comparison
A factor, measured or observed, that responds to, another factor
The variable that is intentionally changed by the experimenter
2
What is Saturation
A condition of a solution whereby it has reached a maximum
The ability of a material to conduct electricity
The process of a gas turning into a liquid
The movement of water through soil and rocks
3
What is Melting Point
The temperature at which a gas turns into a solid
temperature at which a solid changes to a liquid
The temperature at which a liquid turns into a gas
The temperature at which a substance breaks down into atoms
4
What is Dominant
A mutation in DNA
An allele that never appears in offspring
An allele that is only expressed when paired with another recessive allele
Form of a trait that is expressed or shown when the combination of alleles
5
A Molecule is
A single atom
A type of gas
A chemical element
smallest unit of matter that retains all the physical chemical properties
6
What is a Kingdom
he highest Linnaean classification into which organisms are grouped
A classification level below species but above genus
The highest level of classification, grouping all living organisms together
A specific group of animals that share the same habitat
7
Dwarf planet is
Jupiter
Earth
Pluto
Saturn
8
Nucleus is
The center of an atom
A type of bacteria
center region of an atom where protons and neutrons are located
A chemical reaction
9
What is a Test variable
The variable that is used as a control for comparison
The variable that is measured as a result of the experiment
The variable manipulated by the experimenter in order to study changes
The variable that remains constant throughout the experiment
10
Heterogeneous is
A type of mixture in which different parts can be easily distinguished.
A chemical reaction
A uniform mixture
A single-element compound
11
What is Homogeneous
Type of mixture in which the different parts are blended evenly
A substance made of only one type of element
A mixture where the components are visibly distinct
A combination of substances that can be easily separated by hand
12
Heterozygous is
It lacks any alleles for the gene
It has only one allele for a gene
It has two identical alleles for a gene
A cell or organism that has two different alleles for a particular trait.
13
F1 generation is
The original parent generation
A type of mutation
The first generation of offspring from the mating of parental organisms
The dominant traits in an organism
14
What is Law (scientific law)
A principle that is proven to always hold true
A hypothesis that hasn’t been tested
A theory with no evidence
A scientist’s best guess
15
pH
Temperature
Density
Speed of sound
measure of acidity or alkalinity of a solution based on a scale from 0-14
16
Temperature is
A measure of how hot or cold a substance is
The weight of a substance at a given time
The amount of light energy emitted by an object
The total amount of heat energy in a substance
17
How is an astronomical unit (AU) defined?
The distance light travels in one year
The average distance between the Sun and Earth
The radius of the Sun
The distance from Earth to the Moon
18
What is Boiling Point?
It loses all its energy
It turns into a solid
The temperature at which a liquid changes to a gas.
It becomes an acid
19
What does amplitude measure?
The maximum absolute variation of a wave
The distance between two waves
The total height of a wave
The number of waves per second
20
What is Binomial nomenclature?
A classification of cells
A scientific experiment
System used to name organisms using two words: the genus and species name.
A method of measuring mass
21
What is Solute
A substance that does not mix with liquids
A substance that is being dissolved by another substance.
The gas produced when two substances react
The liquid in which a substance dissolves
22
What is Recessive
form of a trait that will be masked unless the organism is homozygous
It determines the dominant trait in an organism
It is always expressed in an organism’s phenotype, regardless of alleles
It can never be passed on to offspring
23
Systematic observations
Observations based only on personal opinions and experiences
Observations made randomly without a structured plan
Observations obtained by following a preplanned method of observation.
Observations that do not require any documentation or recording
24
What is Evolution
Cumulative change in characteristics of organisms/populations over time
The motion of planets
The laws of thermodynamics
The formation of the solar system
25
What is Homozygous
type of cell or organism that has identical rather than different alleles
It has two different alleles for a gene
It has only one allele for a gene
It lacks any alleles for the gene
26
P generation
parental generation in a genetic cross.
The last generation in a long line of genetic crosses
The generation that only contains recessive traits
The first generation of offspring in a genetic cross
27
What is acceleration?
The speed of an object at rest
The total force acting on an object
The rate at which velocity is changing
The distance an object travels over time
28
Percolation is
The chemical breakdown of rocks over time
The movement of air through the atmosphere
The movement of water through rock or soil.
The rapid evaporation of water due to heat
29
Budding is
A process used for plant reproduction
A type of mutation in DNA
A process where two cells merge
An asexual reproductive process in which an outgrowth of a parent organism
30
What is an autotroph?
A type of bacteria
An organism that cannot make its own food
An organism that produces its own food
An organism that eats plants
31
What is Repetition
To make the experiment more complicated
To intentionally change variables and get different results
Making multiple sets of measurements or observations in a investigation.
To prove that all scientific hypotheses are correct
32
Infiltration is
A type of erosion
A form of pollution
A process in which water soaks into the soil.
The movement of air
33
What is Homeostasis
The genetic makeup of an organism
Tendency of a cell, organism, or population to maintain internal stability
The movement of water through soil
The process of digestion
34
What is a Hypothesis
A type of mutation
A guess with no evidence
A scientific law
statement that can be tested scientifically through experiments
35
Which of the following best defines an allele?
A type of protein found in cells
The part of the cell that controls respiration
A unit of measurement for genetic material
Any of two or more alternate forms of a gene
36
Eukaryote is
The motion of planets
An organism whose cells contain a nucleus surrounded by a membrane.
The laws of thermodynamics
A cell with no nucleus
37
Pressure is
The resistance an object encounters while moving
The total force exerted by an object in motion
The force exerted per unit area.
The weight of an object divided by its volume
38
Translucent is
It does not allow any light to pass through
Allows all light to pass through clearly, making objects behind it visible
It reflects all light without absorbing any
Term used to describe a material that cannot be clearly seen
39
Chemical Properties are
The mass of an object
The melting point of ice
The color of a substance
Characteristics of substances that describe their composition
40
A Controlled variable is
A factor that is never recorded
A factor that is changed in an experiment
A factor that is randomly altered
factor or condition in a experiment that is purposefully kept the same.
41
What is Prokaryote
A type of animal cell
A form of energy
A genetic mutation
organism whose cells are characterized by the lack of a defined nucleus.
42
Regeneration is
growth of new tissues or organs to replace those lost or damaged by injury
The process by which organisms grow and develop from a single cell
The process of cell division that produces gametes
The breakdown of dead organic material in an ecosystem
43
What is a Fault
A sediment layer
A crack in Earth’s crust along which movement has occurred.
A type of rock formation
A deep ocean trench
44
Model (scientific model) is
A type of scientific law that has been proven with absolute certainty
A description designed to show the workings of an object or system
A tool used only in physics to describe motion
A perfect replica of a real-world object with no limitations
45
What is a Theory
A guess or assumption that has not been tested
A hypothesis that has been proven correct once
An explanation for some naturally occurring event developed
A law that describes a specific natural event
46
What is Binary Fission
Asexual reproductive process in which a single cell divides into two cells.
A process used in reproduction
A type of genetic mutation
The combination of two different cells
47
What is Empirical evidence
A scientist’s personal opinion
Evidence based on observations or experiments rather than theory.
A theory with no data
A hypothesis without testing
48
Opaque is
term used to describe a material that absorbs and/or reflects light
It allows all light to pass through it completely
It allows some light to pass through but scatters it
It reflects all light without absorbing any
49
What is a Heterotroph
An organism that only feeds on inorganic materials
An organism that cannot produce its own food.
A type of bacteria that creates energy from sunlight
An organism that produces its own food through photosynthesis
50
What is Nebula
A planet’s atmosphere
A type of star
Cloudlike mass of gas and dust in space that may form of a star.
A volcanic eruption
51
What is Solvent
A solid that does not mix with other substances
A gas that forms when two substances react
A substance that dissolves another substance.
The substance that gets dissolved
52
What is Net force
The force that keeps objects at rest
The force exerted by gravity on an object
The sum of all the forces acting on an object.
The force that always opposes motion
53
Replication is
The formation of new proteins in a cell
The reproduction of a scientific investigation by another person
The division of a cell into two identical cells
The change in genetic material over time
54
A Light-year is
The time it takes for light to travel around the Earth
The speed at which light moves through space
A unit of time used to measure astronomical events
The distance a ray of light travels in a vacuum in one year.
55
Niche is
The process by which organisms evolve into new species
The physical location where an organism lives
The number of organisms that can survive in an ecosystem
The unique position occupied by a particular species in terms of the area
56
Transparent is
It reflects all light without absorbing any
term used to describe a material that can be clearly seen through
It allows some light to pass through,making objects behind it appear blurry
It does not allow any light to pass through
57
A Fold is
A fault line where two tectonic plates separate
A bend in a layer or several layers of rock.
A volcanic eruption that creates mountain ranges
A type of earthquake caused by tectonic activity
