WorksheetsScience Practice 0
Total questions: 40
Worksheet time: 21mins
Which sphere of the Earth includes all the water on the planet?
Atmosphere
Hydrosphere
Biosphere
Geosphere
Organs are directly made up of what lower level of cellular organization.
Cells
Tissues
organ
organ system
Peter visited Miami Beach, Florida, during the month of June. Why does he feel a shore breeze blowing from the ocean?
The ocean is colder than the land.
The land is colder than the ocean.
The ocean is denser than the land.
The land is denser than the ocean.
Which two organ systems in the human body work together to deliver oxygen (O2) and eliminate carbon dioxide (CO2) from cells?
the excretory and digestive systems
the excretory and respiratory systems
the digestive and circulatory systems
the respiratory and circulatory systems
The graph below describes the velocity, measured in meters per second (m/s), of an object over a period of time, measured in seconds (s). Which section of the graph represents negative acceleration?
A
B
C
None
Section of DNA on a chromosome that has genetic information for one trait.
Energy
Genes
Organelles
Resources
What is not a component of Cell Theory?
All organisms contain one or many cells
Cells come from other cells
All organisms have Eukaryotic cells
Cells are the basic unit of life
Scientists use a system called binomial nomenclature to classify organisms.
For example, the wolfdog is known as Canis lupus. Each of the two names has a different significance. Which of the following correctly describes the meaning of the two names?
Canis is a distant evolutionary ancestor of the wolfdog, while lupus is a more recent species.
Canis is a group of organisms with similar behavior, while lupus is a group with similar structures.
Canis is a group of organisms with similar external structures, while lupus is a group with similar internal structures.
Canis is a group of different organisms with similar structures, while lupus is a smaller group of members that can only breed with another lupus.
What are the raw materials of photosynthesis?
Oxygen
Water
Glucose
Carbon dioxide
Identify a physical change
cooking egg
melting ice
rusting
photosynthesis
Identify a chemical change
cooking egg
breaking glass
melting ice
boiling water
A mountain is formed by....
Divergent boundaries
Transform boundaries
Volcanic chains
Convergent boundaries
Ring of Fire is a zone where earthquakes and volcanic eruptions are common on the western edge of the Pacific Ocean. Which theory does this pattern of geological phenomena support?
Weathering
The rock cycle
Plate tectonics
Biological evolution
Which of those planets exerts the greatest gravitational force?
Pluto
Earth
Neptune
Jupiter
A scientific investigation states that the experiment must be able to be replicated. What happens when an experiment is replicated?
A scientific publisher accepts the experimental results for printing.
No one in the scientific community agrees with the methods or results.
Other scientists perform the same experiment and get comparable results.
The scientific researcher performs the experiment many times and gets the same results.
Peter is cleaning his car in the driveway during the summer, he feels that concrete temperature is heating his face. How is heat transferring from driveway to Peter's face?
Conduction
Radiation
Convection
Car Reflection
Commensalism, Mutualism and parasitism represents interaction between two organisms for long period of time. What is different about parasitism compared to the other biological relationships such as mutualism, and commensalism?
The parasite must utilize a host organism that may or may not die as a result of the relationship
A parasitic organism causes harm to other organisms as a result of the symbiotic relationship.
The host is neither helped nor hurt by the relationship and interaction with the parasitic organism.
Both the parasite and the host are helped by the relationship and interaction with the parasitic organism.
The pancreas is a gland that regulates the body with a hormone called insulin. A biologist wanted to discover the effects of insulin from the pancreas. The biologist altered the pancreases from 50 mice. The biologist kept another 50 mice unaltered. Then the biologist recorded the differences that developed between the mice in both groups. What method did the biologist perform to investigate the role of the pancreas?
publishing finished results
reading scientific literature
analyzing a natural experiment
conducting a controlled experiment
Bees have a symbiotic relationship with plants. Bees take food from plants and plants are pollinated. Which symbiosis describes this example?
Mutualism
Commensalism
Parasitism
Predation
How best can scientist ensure that their results are valid?
Scientists hire editors to review their lab reports to make sure that their explanations are clear and concise and to change anything that doesn’t sound good.
Scientists partner with mathematicians to check over all their data and charts and graphs to ensure that there are enough data, but if not, they can add to the data.
Scientists repeat their experiments just a few times to show that they can get the same results more than once and to catch any mistakes in the procedure.
The scientists repeat their experiments over and over many times to ensure that they have taken everything into consideration to communicate quality results.
What molecule contains the gene that is transferred to offsprings?
Energy
DNA
Phenotype
Protein
Radio waves are a type of electromagnetic radiation with the longest wavelengths and lowest frequencies in the electromagnetic spectrum. They are commonly used for communication, including AM/FM radio, television, and cell phones. Two satellites send out radio waves with the same frequency. The first satellite sends radio waves through the air. The second satellite sends radio waves through the ocean. What is true about these radio waves?
They are visible.
They have different speeds.
They are audible.
They have the same wavelength.
All of the devices below either use or produce electrical energy. Which one converts mechanical energy to electrical energy?
Phone
Wind turbine
Electric drill
TV
. Identify a Law
A living thing is made of at least one cell.
An atom is made of electrons orbiting a nucleus.
Natural selection will change species to fit their environments.
Gravity will pull two objects toward each other.
Identify theories
A living thing is made of at least one cell.
An atom is made of electrons orbiting a nucleus.
Natural selection will change species to fit their environments.
Mass is the same before and after chemical reaction.
Sound is energy created by vibrations, and it moves at different speeds, depending on the medium; through which medium will sound move the fastest?
Water
Air
Concrete
Space
The electromagnetic spectrum is the range of all types of electromagnetic radiation, which differ based on their wavelengths and frequencies. It includes everything from radio waves (with the longest wavelength) to gamma rays (with the shortest wavelength). Part of the electromagnetic spectrum is visible light. Which color is at the opposite end from red?
Blue
Yellow
Violet
Orange
Astronomers send probes to other planets to take pictures of their surfaces. An astronomer thinks that briny water flows on Mars because he noticed certain features in one picture of Mars. Which method did the astronomer use to form this hypothesis?
Reading scientific literature
Making careful observations
Analyzing a natural experiment
Conducting a controlled experiment
Scientists use modern telescopes to detect planets around distant stars. Why couldn’t astronomers detect these planets before?
The planets are much closer than the stars they orbit.
The planets are much larger than the stars they orbit.
The planets are much farther than the stars they orbit.
The planets are much smaller than the stars they orbit.
Which of the following statements is an example of a Law?
Electrons orbit the nucleus of an atom within a certain radius.
DNA analysis reveals that a modern species is related to an extinct species.
Seafloor spreading occurs at a rate of three centimeters per year in the mid-Atlantic.
The amount of matter in a closed system is the same at the start of a reaction as at the end of the reaction.
John adds to the soda four ice cubes. In a few minutes the ice cubes are smaller, and the soda is much colder. Which of the following best explains the change in temperature of the soda?
Heat flowed from the soda to the ice cube and caused it to partially melt.
Heat moved from the ice cube to the soda, making the soda cooler.
The cold water from the melting ice went into the soda, replacing the warmer water that was in the soda.
The water from the melting ice makes the soda more dilute, and the lower concentration makes the temperature lower.
Which of the following astronomical bodies is largest?
Jupiter
Moon
Sun
Milky Way
Which of these celestial objects is farthest from the Sun?
Pluto
Neptune
Andromeda Galaxy
Asteroid Belt
Which of the following physical characteristics are Not the same for a particular substance, regardless of the sample size?
Mass
Melting Point
Volume
Weight
Herbivores get energy by eating plants. Plants get energy from sunlight. Why does most of the energy captured by plants never become available to herbivores?
The herbivores find alternate sources of energy.
The plants also provide energy directly to carnivores.
The plants use most of their energy to maintain themselves.
The herbivores conserve the energy in plants for future generations.
The picture shows a water molecule. What is this molecule an example of?
an atom
an element
a mixture
a compound
Which of the objects illustrated can exert a force across a distance?
Baseball
magnet
hammer
exercise weight
All living things are made of cells. What are cells made of?
Organs
Compounds
tissues
organ systems
Chlorophyll is a pigment in plant cells responsible for absorbing sunlight. What statement is correct about chlorophyll function?
Green is the least effective color of light for photosynthesis.
Orange and red is the least effective colors of light for photosynthesis.
The least effective colors of light for photosynthesis appear to be violet.
Color of light is not important in the Photosynthesis process.
Organ Systems interact with each other in order to maintain the Homeostasis. Which of the followings is an example of this interactions
The digestive system produces wastes, and the respiratory system eliminates waste in the form of carbon dioxide.
The nervous system senses a loud unexpected noise, and the circulatory system increases the heart rate.
The musculoskeletal system gets infected through a cut, and the vascular system responds with inflammation.
The respiratory system increases the intake of oxygen during exercise, and the circulatory system
distributes the oxygen throughout the body.
