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WorksheetsScience Practice 3
Total questions: 60
Worksheet time: 30mins
What is the term for a physical characteristic that results from a gene, such as eye color or height?
Genotype
Phenotype
Chromosome
Allele
In pea plants, tall (T) is dominant over short (t). What is the probability of getting a tall plant when crossing two heterozygous plants (Tt × Tt)?
25%
50%
75%
0%
What is the term for a gene pair containing two different alleles?
Homozygous dominant
Homozygous recessive
Heterozygous
Pure breed
What structure carries genetic information in the form of DNA?
Ribosome
Chromosome
Mitochondria
Golgi body
If a pure-breeding black rabbit (BB) is crossed with a white rabbit (bb), what will be the genotype of all offspring in the F1 generation?
BB
bb
Bb
None
Which type of cell division produces gametes (egg and sperm cells)?
Mitosis
Binary fission
Budding
Meiosis
Which of the following is NOT an example of condensation?
Morning dew forming on grass
Steam from a hot shower turning into water droplets
Ice cubes melting in a glass
Water droplets forming on a cold soda can
In the water cycle, condensation leads to the formation of:
Groundwater
Clouds and drops of water
Rivers
Global Wind formation
The picture represents Hydrogen Isotope. What is similar between those Hydrogen atoms?
Number of electrons around the nucleus
Number of neutrons in the nucleus
Atomic mass
Number of protons in the nucleus
According to the Law of reflection, a light ray striking a mirror.....
continues moving through the mirror in the same direction
moves into the mirror at a slightly different angle
bounces off the mirror toward the direction it came from
bounces off the mirror at the same angle it hits.
The fact the two angles are the same is an example of....
Refraction
Angle of Incidence
Law of reflection
Magnification
A student placed a pencil in a cup of water. The pencil appears broken because light-
always travels in a straight line
bends when it passes through water
makes the water in the glass evaporate
reflects the pencil on the water's surface
A big air current from Equator is reaching Florida. How does this phenomenon affect Florida?
It create a dry season in winter
It prevents any rainfall
It causes constant snow
It transports warm air to Florida, creating a warm environment.
The rock cycle is a geologic cycle that describes how rocks change from igneous, metamorphic, and sedimentary types over time. It is driven by plate tectonics, water cycle, and other forces. What low confirms this process?
Law of gravitational force
Law of rock formation
Law of superposition
Law of conservation of mass
What particle is defining the atomic number of Lithium atom?
Number of electrons
Atomic mass
Number of neutrons
Number of protons
. Scientists have collected large amounts of evidence that support the idea shown in the illustration.
Which of the following is a scientific theory that is best supported by this evidence?
evolution
superposition
plate tectonics
universal gravitation
What organ system is directly associated to this white blood cell’s function?
Circulatory System
Excretory System
Endocrine System
Immune System
Airport security scanners play a vital role in ensuring passenger safety. While old metal detectors could only detect metal, the upgraded airport body scanners are also extremely good at finding non-metal objects. What type of radiation is used for in airport scanners?
Infrared radiation
Ultraviolet radiation
Radio waves
X-Rays
The law of superposition is one of the principles of geology scientists use to determine the relative ages of rock strata. This principle states that the oldest rock strata will be on the bottom and the youngest at the top. This principle show us.....
Absolute age of the rocks
Weathering process action
Erosion process action
Deep of the rocks layers
Continental drift describes one of the earliest ways geologists thought continents moved over time. This map displays an early "supercontinent," Pangea, which eventually moved to form the continents we know today.
Continental Drift represents
Opinion
Hypothesis
Law
Theory
Which of the following is evidence that Pangea moved to form the continents we know today.
Similar plant and animal fossils found on both continents Africa and Sout America
Rock composition and mountain ranges aligning when continents are brought together.
Fit of the Continents.
All the above
A landslide is defined as the movement of a mass of rock down a slope. Landslides denote direct influence of gravity, a classic morphological cause of landslides is erosion, or weakening of earth due to water, building a new landform at the mountain base by........
Deposition
Erosion
Weathering
Superposition
Every river on the surface of the earth flows, this river drains into a water body such as lake, ocean or sea. The reduction in velocity of the current makes the river incapable of transporting sediment farther. and deposition of sediment occurs at this time, creating a landform. What is the name of the process?
Mid ocean ridge
Water convection
Alluvial fan
Delta
Wasps often lay their eggs just inside the eggs of butterflies. The wasp larva (baby wasps) is able to get lots of nutrients and protection from the butterfly/caterpillar egg while its developing. After the caterpillar is born, the wasps continue lurking in the flesh of the caterpillar, soaking up more nutrients and drinking its blood. The wasp larva must keep its host alive, so it avoids damaging the vital organs.
What type of symbiosis is being described?
predator/prey
commensalism
competition
parasitism
What reasoning would you use to explain the role of water in the process of mountain deposition?
Water dissolves rocks, preventing deposition
Water transports sediments and aids in their deposition
Water evaporates, leaving sediments behind
Water freezes, causing rocks to break apart
Erosion is a process that slowly changes rocks. Which of the following most likely causes pebbles in a stream to erode?
flowing water
movement of ice
force of gravity
freezing and thawing
A gently sloping mass of sediment that forms where a stream empties onto a flat plain at the foot of a mountain is called Alluvial fan and this process is formed by—
erosion
deposition
weathering
tectonic plates
What is liquid rock stored in a chamber inside a volcano?
Lava
Plasma
Magma
Mid ocean ridge
The end of mitosis results in
2 cells that are identical
4 cells that are identical
2 cells that are not identical
4 cells that are not identical
The end of meiosis results in
2 cells that are identical
4 cells that are identical
2 cells that are not identical
4 cells that are not identical
In which type of cell division does crossing over occur?
Mitosis
Meiosis
cell division
asexual reproduction
Identify the image
Meiosis
Mitosis
Identify the image
Mitosis
Meiosis
Ernesto and Amanda fill two cups with water. They use hot water in one cup and cold water in the other cup. Next, they will stir a spoon of salt into each cup. What will happen?
The salt will not dissolve in either cup
The salt dissolves more slowly in the cold water
The salt dissolves more slowly in the hot water
The salt dissolves at the same speed in both cups
Dionne observes her science teacher testing a sample of an unknown substance. She recorded her observations in the table shown below.
Which test would provide evidence of a chemical change?
1
2
3
4
A scientist observes six lady beetles of the same species that live in the same location. Each of the lady beetles is a different shade of orange or yellow, and each has a different number of black spots. Which statement most likely explains how these differences relate to the evolution of the lady beetle species?
These differences show that the species may learn to adapt to a warmer and drier climate.
These differences show that damage to plants in the habitat has caused the species to develop additional spots.
These differences show that mutations have developed in the population as the species was exposed to pollutants.
These differences show that there is genetic variation in the population that may allow the species to survive changes to its habitat.
Sound waves travel the fastest in
Space
Water
air
solid
Light waves travel the fastest in
vacuum of empty space
water
gases
solid
If a scientist wants to test the effect of fertilizer on plant growth, what should be the control group?
Plants that receive double the amount of fertilizer
Plants that receive no fertilizer
Plants that receive a different type of fertilizer
Plants that receive the same amount of water
Which of the following best describes the purpose of an experimental control in an experiment?
To ensure that the experiment is conducted in a controlled environment
To provide a standard for comparison against the experimental group
To increase the number of variables in the experiment
To ensure that the experiment is repeated multiple times
Which of the following is a renewable source of energy?
Coal
Oil
Solar
Natural Gas
Fill in the blank: Photosynthesis occurs in the _______ of the plant cell.
chloroplast
mitochondria
nucleus
ribosome
What is the chlorophyll's function?
Photosynthesis
provides energy to the cell
controls the amount of water in cell
Absorbs sun light
If a 50 N force pushes right and a 30 N force pushes left on a box, what is the net force?
80 N to the right
20 N to the right
20 N to the left
80 N to the left
A student pushes a book with 15 N of force forward and their friend pushes with 15 N of force backward. What is the net force?
30 N forward
0 N
15 N forward
30 N backward
When the net force on an object is zero, which statement is true?
The object is always at rest
The object is accelerating
The object maintains its current motion (either at rest or moving at constant velocity)
The object must be moving very fast
The diagram shows Earth's position relative to the Sun at a certain point during the year. Which season would be experienced in the Northern Hemisphere
What tool is specifically designed to measure the amount of precipitation?
Which climate zone is characterized by year-round warm temperatures and consistent rainfall patterns?
Tropical rainforest climate zone
Polar climate zone
Temperate climate zone
Desert climate
zone
What is the primary characteristic of the polar climate zone?
Extremely low temperatures, minimal precipitation and permanent ice.
When a person rides a bicycle, what is the primary energy transformation that occurs?
Chemical energy to thermal energy
Chemical energy to mechanical energy
Mechanical energy to chemical energy
Electrical energy to mechanical energy
What is not a renewable resource?
. Two Olympic cyclists rode their bicycles on an oval track. The graph below represents the number of 500-meter laps they completed.
Based on the graph, which statement best describes the motion of the cyclists as they rode their bicycles?
Both cyclists made stops about halfway through their rides.
Both cyclists rode their bicycles at about the same speed.
Cyclist 2 made more stops than Cyclist 1.
Cyclist 1 rode about twice as fast as Cyclist 2.
The allele combinations inside body (unobservable traits)
Phenotype
Mitosis
Genetics
Genotype
What is friction?
A force that only exists in liquids
A force that helps objects move faster
A force that only exists in gases
A force that resists motion between two surfaces in contact
Which of the following increases friction?
Adding oil between surfaces
Making surfaces smoother
Adding wheels to an object
Making surfaces rougher
How does gravity affect a rocket's motion in space as it moves away from Earth?
Gravity completely disappears once the rocket leaves Earth's atmosphere
Gravity gradually decreases as the distance from Earth increases
Gravity remains constant regardless of distance from Earth
Gravity increases as the rocket moves further into space
During the freezing process of water, what happen with thermal energy?
still the same
the process is absorbing energy
Energy is destroyed
the process is releasing energy
Bacteria cell is smaller than virus and yeast, what fact is correct about bacteria cell?
What does picture represent?
Water cycle
Carbon Cycle
Mountain formation due to divergent boundaries
Convection in the atmosphere
