Science Flashcards
This type of rock was originally liquid below the Earth’s crust and is formed by lava and magma:
A. sedimentary
B. igneous
C. metamorphic
D. fossils
igneous
This type of rock is formed by heat and pressure:
A. fossil
B. sedimentary
C. igneous
D. metamorphic
metamorphic
A river flows through a canyon and picks up silt. That sediment and silt runs downstream and
deposits where the river ends. When that material gets to the beach, it sits there. Over millions of years, _________________________ form.
A. fossils
B. sedimentary rocks
C. igneous rocks
D. metamorphic rocks
sedimentary rocks
Mr. Lopez is teaching a unit on seasons. He explains why summer days are longer and winter days are shorter. What should Mr. Lopez emphasize regarding the Earth when explaining this phenomenon?
A. revolution around the sun
B. tilt on its axis
C. position in the solar system
D. distance away from the sun
tilt on its axis
The sun appears bigger than other stars because of:
A. the size of the sun.
B. the size of the solar system.
C. the distance Earth is from the sun.
D. the distance the sun is from Mars
the distance Earth is from the sun.
The six different kingdoms are:
A. plante, animalia, fungi, protista, eubacteria, archaebacteria.
B. phylum, animalia, fungi, protista, eubacteria, archaebacteria.
C. plante, animalia, fungi, protista, eubacteria, prokaryote.
D. plante, animalia, fungi, protista, eukaryote, archaebacteria.
plante, animalia, fungi, protista, eubacteria, archaebacteria.
The particles in an atom that are negatively charged are:
A. electrons.
B. protons.
C. neutrons.
D. protons and neutrons together
electrons.
A tree going through photosynthesis is using what type of energy?
A. chemical energy
B. mechanical energy
C. solar energy
D. electrical energy
chemical energy
__________________ are atoms that have lost or gained one or more ___________________.
A. compounds, electrons
B. ions, elections
C. compounds, protons
D. ions, protons
ions, elections
Mr. Jasper wants to show students when oil and water are shaken, no matter how hard, the oil can still be seen as little oil bubbles throughout the mixture. Mr. Jasper is showing the class a:
A. homogeneous mixture.
B. heterogeneous mixture.
C. solution.
D. colloid.
B. heterogeneous mixture.
Ms. Francis wants to conduct a lab with her students. What is the best way to ensure safety, efficiency, and student learning?
A. Get students into groups to learn on their own.
B. Predetermine groups, conduct the lab, and debrief.
C. Predetermine groups, assign specific roles for each student, and require a lab journal write-up.
D. Go over the scientific method to ensure students understand the process of the lab.
C. Predetermine groups, assign specific roles for each student, and require a lab journal write-up.
Eukaryotic organisms are _________________, and prokaryotic organisms are ___________________.
A. single cellular, multicellular
B. multicellular, single cellular
C. multicellular, multicellular
D. single cellular, single cellular
B. multicellular, single cellular
In an experiment to see if fertilizer works on a cactus, students have two cacti. Both cacti receive the same water and sunlight. Both cacti are in the same place within the room, and the temperature is the same for both cacti. However, one cactus gets fertilizer and the other does not. Identify the independent
variable and the dependent variable.
A. The independent variable is the sunlight. The dependent variable is the fertilizer.
B. The independent variable is the fertilizer. The dependent variable is the growth of the cacti in centimeters.
C. The independent variable is the cactus that did not get fertilizer. The dependent variable is the sun.
D. The independent variable is the fertilizer. The dependent variable is the sun.
B. The independent variable is the fertilizer. The dependent variable is the growth of the cacti in centimeters.
In a lunar eclipse, what is the order of the Earth, sun, and moon?
A. sun, Earth, moon
B. Earth, moon, sun
C. moon, Earth, sun
D. Earth, sun, moon
sun, Earth, moon
A third grade teacher wants to evaluate student learning in photosynthesis. She is having students conduct a lab to show their mastery of concepts covered in the photosynthesis unit. What kind of assessment is the teacher using?
A. formative
B. summative
C. criterion
D. performance-based
performance-based
A student is conducting an experiment to see which brand of fertilizer yields the most growth. All the pots have received the same amount of seeds, soil, water, and sunlight. The only difference is each pot receives one type of fertilizer. She observes the growth and records the data. To make this experiment stronger she could:
A. add a hypothesis.
B. add a control.
C. add an independent variable.
D. add a dependent variable.
B. add a control.
An organism that consumes food from its environment is a(n):
A. heterogeneous.
B. heterotroph.
C. autotroph.
D. parasite.
B. heterotroph.
The teacher is giving students a test at the end of a science unit. The grades from the test will be documented in the grade book and will impact students’ overall grades. She is giving a
________________ assessment.
A. formative
B. normative
C. summative
D. authentic
C. summative
A(n) __________________ has lost or gained an electron.
A. isotope
B. ion
C. atom
D. neutron
ion
____________________ are formed when the Earth’s plates pull apart.
A. Convergent plate boundaries
B. Subjective plate boundaries
C. Volcanic plate boundaries
D. Divergent plate boundaries
D. Divergent plate boundaries
An element manipulated in the experiment
Independent variable
What the scientist is measuring in an experiment
Dependent variable
The elements of the experiment that a scientist wants to remain the same and it must be observed carefully
Control variable
How do you find out mass of an object
Mass= density X volume
How do you find out the volume
Volume = mass divided by density
How do you find out density
density = mass divided by volume
What are the two types of mixtures
Homogeneous and heterogeneous
Neutrally charged subatomic particle that are located in the nucleus
Neutrons
Positively charged subatomic particles that are located in the atoms nucleus
protons
Smallest particle in a chemical element or compound that has the chemical properties of that element or compound
molecule
Two or more forms of the same element that have the same number of protons but a different number of neutrons
Isotopes
Transfer of heat by the actual movement of the warmed matter
convection
Transfer of heat from particle to particle.
conduction
Formations formed as a result of earths tectonic plates smashing together
mountains
Formations that are formed when magma from within earths upper mantle erupts through the surface
volcanoes
Formations that are formed by weathering and erosion caused by the movement of rivers and tectonic activity
canyons
Divergent
pulling apart
Convergent
coming together
Subduction
Sideways and downward movement of the edge of a plate into the mantle beneath another plate
The outermost shell of earth. Aka the crust
Lithosphere
All the water on earth in liquid form
hydrosphere
The global sum of all ecosystems and living organisms
biosphere
The masses of frozen water
cryosphere
What does the heliocentric theory believe
The sun is at the center of the universe
What does the geocentric theory state
Believed that earth sat stationary at the center of the universe.
When talking about moon illumination
Waxing =
Waning=
Waxing = illuminated in the right side Waning= illuminated on the left side
The ____ occurs when the moon passes directly behind earth into its shadow
Lunar eclipse
The ____ happens when the moon moves in front of the sun
Solar eclipse
This area is located around the outer edge of the Pacific Ocean and is where most volcanic activity occurs
Ring of fire
A unicellular organism that lacks a nucleus, mitochondria, or any other membrane bound organelle
Prokaryote
A multicellular organism that contains a nucleus, mitochondria, and membrane bound organelles
Eukaryote
What do plant cells have that animal cells do no have
Plant cells have chloroplast and cell walls
Animal cells have plasma membranes and no chloroplast
A eukaryote that doesn’t make its own food and that doesn’t contain cells with a cell wall is an
Animalia
During this stage of mitosis, chromosomes line up in the idle of the cell and spindle fibers attach to the center of the chromosomes
Metaphase
Sometimes during cell division sex cells contain three copies of chromosomes instead of two. This results in
trisomy
A symbolic relationship where both organism benefit is called
Mutualism
The term used to refer to a plan growing toward light
Phototropism
A student scores in the 75 percentile on a national science test. What type of assessment did the student take
Norm referenced
Before scientists can perform an experiment on human subjects, scientist must:
Obtain informed consent
In the energy pyramid which section contains the most energy
The very bottom
There are herbivores that eat the producers in a food web
Primary consumers
_____ make their own food
Autotrophs
Before a cell can divide, the DNA must go through this process
DNA replication
