Plate tectonic/ layers of the earth
What is the name of the theory that was proposed by Alfred Wegner stating that the distant past, the Earth’s continents were all joined as a single landmass?
Waves can be described with characteristics such as amplitude, frequency, and wavelength. As the wavelength decreases, what happens to the frequency?
Mrs. Flemming asked her students Nicolas to help her drag a heavy box. Mrs. Flemming pushed the box with 20 newtons of force while Nicolas pulled the box with 15 newtons of force. What was the net force acting to the box?
There are two graduated cylinders of water on the table. One cylinder has 100mL of water and the other has 250mL of water. Which of the following properties would be the same for both cylinders of water?
Craig's science lab teacher instructed him to follow these procedures:
Step 1: Collect alfalfa seeds.
Step 2: Place 12 alfalfa seeds in three different pottig soils
Step 3: Provide them each with the same amount of sunlight and water
Step 4: Record observations
What is he testing?
a. the effect of potting soil on the germination of alfalfa seeds
b. the effect of sunliht on the growth rate of alfalfa seeds
c. the variant amount of water on the growth of alfalfa seeds
d. the growth rate of different types of alfalfa seeds
a. the effect of potting soil on the germination of alfalfa seeds
Organs in the human body are made from different types of tissue. Which type of tissue makes up the heart?
Which layer of the Earth is the thinnest and makes up only one percent of the whole earth?
Crust
Which of the following celestial objects has the greatest diameter?
Outer planets
Which term below best describes fast flowing, narrow air currents found in the atmosphere
jet stream
Coriolis effect
strong wind
non of the above
Marc and his brother take turns mopping the floor in their father’s pizzeria each night. Which force becomes weakened when the floor is wet?
Friction
Which of the following is not likely to be evidence of a chemical change?
Which of the following is not a rule that is common to writing a hypothesis.
a. commonly known as a prediction
b. must be something that is testable
c. should be written in an if/then statement
d. should be a restatement of the problem statement
c. should be written in an if/then statement
Most organisms that you are able to see are made up of many cells. How would you describe many cells with the same function that are grouped together?
a. organs
b. tissues
c. organ system
d. macromolecules
b. tissues
What causes plates to move on the mantle’s surface?
Gravity keeps smaller objects in orbit around larger objects. What statement correctly describes asteroids and moons?
What's the difference between weather and climate?
Weather changes daily, climate is long-term
Weather is long-term, climate is short-term
Weather is short-term atmospheric conditions, climate is long-term average
Climate is short-term atmospheric conditions, weather is long-term average
Weather is short-term atmospheric conditions, climate is long-term average
Energy transformation is the process of changing energy from one form to another. Which of the following represents electrical energy being transformed into mechanical energy?
a. burning a piece of toast in a toaster
b. cutting the grass with a lawnmower that has an electrical cord
c. driving a minivan across the state on a family vacation
d. using solar panels to generate electricity in a home
b. cutting the grass with a lawnmower that has an electrical cord
Sodium (Na) is soft silver metal. Chlorine (Cl) gas is green and deadly. When they chemically combine, they from sodium chlorine (NaCl), better known as salt. What term describes NaCl.
a. Electron
b. Neutron
c. Atom
d. Compound
d. Compound
Which statement about repetition and replication is correct?
a. scientist practice repetition when they repeat an experiment conducted by previous expermineters.
b. scientist practice repetition when they verify and disprove data collected by a previous experimenter
c. scientist practice repetition when they repeat an experiment conducted by previous experimenters
d. scientist practice repetition when they verify and disprove data collected by a previous experimenter
c. scientist practice repetition when they repeat an experiment conducted by previous experimenters
Which of the following lists the levels of organization in an organism in the correct order, beginning with the building block of life?
a. organism, cell, organs system, tissues
b. organ, cell, tissue, organism, organ system
c. organ system, organ, organism, tissue, cell
d. cell, tissue, organ, organ system, organism
d. cell, tissue, organ, organ system, organism
Which of the following is caused by the strained movement of Earth’s plates that causes them to break?
Limestone is a type of rock that is formed from the remains of dead ocean animals at the bottom of ancient ocean beds. The rock is formed in layers. What type of rock is limestone.
Sunlight is composed of energy that is both visible and invisible to the human eye. Which of the following does not describe how visible energy is diffferent from invisible energy from the sun?
a. it travels a different direction
b. it has different wavelength
c. it has different frequency
d. it has different energy levels
a. it travels a different direction
While making pasta on the stove, you chose a spoon to stir the salt into the noodles and boiling water. You pick a wooden spoon to decrease your chances of getting burned. What type of heat transfer are you trying to prevent?
a. convection
b. conduction
c. radiation
d. absorption
b. conduction
a variety of substances were tested. The coffee tested was found to have a pH of 5.9. Which of the following categories would the coffee be place into?
a. strong acid
b. weak acid
c. strong base
d. slightly neutral
a. weak acid
0-6 acid 7- neutral 8-14 base
An example of a scientific law, the law of conservation of energy is listed below: "Energy can neither be created nor destroyed; rather, it can be transformed or transferred from one form to another." What is the best definition of the term "law" as it is used in science.
a. A law is a guess something occurring in nature
b. A law is a comprehensive set of ideas explaining a phenomenon in nature
c. A law is based on verifiable facts and can be proven true
d. a law is a hypothesis that uses laws and observation to make assumptions
c. A law is based on verifiable facts and can be proven true
Growth is a basic characteristic of most living things. Which of the following explains why they are able to get larger as they develop?
a. cells joing together to from organs and systems.
b. cells divide to produce more cells.
c. cells expand to take up space.
d. cells have the ability to triple in size
b. cells divide to produce more cells.
Earthquakes occur in specific areas of Earth’s crust. At which of these areas are earthquakes most likely to occur?
Which method is used to determine the absolute age of a discovered fossil?
A boy is standing at the shoreline of a beach. He is counting the number of waves that pass that spot while he is standing there, Which of the following properties was he obseving?
a. wavelength
b.amplitude
c. crest
d. frequency
d. frequency
A hot air balloon is an example of
a. conduction
b. convection
c. radiation
b. convection
What do elements that belong to the same group have in common?
a. they have the same number of neutrons
b. they are all made of the same atoms
c. they all have the same number of electrons
d. they all have similar chemical properties
d. they all have similar chemical properties
How are laws different from theories?
a. Laws always apply, with few noted expectations.
b. Laws are considered facts and not questions.
c. Laws are explanation of events that occur in the natural world
d. Laws are predictions that guide our research
b. Laws are considered facts and not questions.
Plant and animal cells are similar in structure an organization. However, there are two organelles that are unique to plants cells. Compared to an animal cell, which organelle is specific to plant cells?
a. cell wall
b. cytoplasm
c. cell membrane
d. vacuoles
a. cell wall