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WorksheetsMCAS Science Review 8th - 2023 Release question
Total questions: 15
Worksheet time: 8mins
The diagram shows the locations and relative sizes of several galaxies.
A student is asked to show the location of Earth’s solar system on the diagram. Where should the student draw Earth’s solar system on the diagram?
within the Milky Way galaxy
within the Sagittarius Dwarf galaxy
between the Milky Way galaxy and the Boötes Dwarf galaxy
between the Sagittarius Dwarf galaxy and the Large Magellanic Cloud galaxy
As an apple falls from a tree, the apple’s potential energy and kinetic energy change. The diagram shows the apple at two positions, T and G. At position T, the apple is about to fall. At position G, the apple is about to hit the ground.
Which graph shows the apple’s potential energy and kinetic energy at positions T and G?
Every morning a student eats a bowl of cereal with milk for breakfast. The cereal and the milk are broken down and used in the student’s cells during cellular respiration.
Select the correct order for the symbols in each box to model cellular respiration in the student’s cells. Each symbol may be used once, more than once, or not at all.
C B A
B C A
A B C
A C B
A certain chromosome in humans contains genes that affect eye color.
Select the answers that correctly complete the sentence.
This chromosome is located in the _________ of ___________ cells.
cytoplasm
all body
membrane
only hair and eye cells
mitochondria
only hair and eye cells
nucleus
all body
Two children from the same parents have different eye colors. One child has blue eyes, and the other has brown eyes.
Select the answer that correctly completes the sentence.
Each child has a different eye color because each inherited __________
a different number of genes
a different number of chromosomes
chromosomes that produce different types of fat
genes that cause different proteins to be produced
Which of the following is the best example of thermal energy being transferred primarily through conduction?
when sunlight reflects off a lake
when magma touches surrounding rock
when warm air currents move over an air mass
when warm water near the equator flows north
A group of students is learning about chemical reactions. They perform an investigation with four different setups. Only one of the setups is a closed system. The masses of the setups are measured and then a chemical reaction occurs in each setup. After the reactions occur, the masses are measured again. The results are shown in the table.
Based on the results, which setup is most likely the closed system?
setup W
setup X
setup Y
setup Z
A student is studying mitochondria in plant cells. Which of the following best describes the basic function of mitochondria in a plant cell?
to store water in the cell
to provide energy for the cell
to remove wastes from the cell
to provide carbon dioxide to the cell
Antibiotics are a type of medicine used to treat infections caused by bacteria. Bacteria that are killed by an antibiotic are said to be sensitive to that antibiotic. Sensitivity to antibiotics is an inherited trait in bacteria. The graph shows the change over time in the percentage of a certain species of bacteria that are sensitive to an antibiotic.
Which of the following best explains the change in the sensitivity of the bacteria to the antibiotic?
The bacteria are becoming more sensitive to the antibiotic because bacteria were killed each time they were exposed to the antibiotic.
The bacteria are becoming more sensitive to the antibiotic because the bacteria changed their genes to protect themselves from the antibiotic.
The bacteria are becoming less sensitive to the antibiotic because some bacteria were able to survive and pass on traits that protect them from the antibiotic.
The bacteria are becoming less sensitive to the antibiotic because some bacteria reproduced very rapidly when they were aware of the antibiotic in their environment.
The diagram shows two tectonic plates at a mid-ocean ridge.
Based on the diagram, which of the following best describes how the plates are moving?
The plates are being pushed toward each other by the cycling of materials in the core.
The plates are being pushed toward each other by the waves of heat traveling through the mantle.
The plates are being pushed away from each other by convection currents in the mantle.
The plates are being pushed away from each other by the eruption of hot magma from the core.
Different types of cell phone signals can provide different download speeds. The graph shows the download speeds of two types of cell phone signals, X and Y, based on how close the cell phones are to an antenna.
Based on the graphs, which of the following best compares the two types of cell phone signals?
Through each of the materials, signal X has a faster download speed than signal Y has.
At any distance from an antenna, signal X has a faster download speed than signal Y has.
When traveling close to an antenna, signal X has faster download speeds through air than signal Y has.
When traveling far away from an antenna, signal X has faster download speeds through stone than signal Y has.
The map shows two cities in the United States, Los Angeles and Oklahoma City.
Select the answers to correctly complete the sentence.
Los Angeles is expected to have ______ summers than Oklahoma City due to the difference in ______.
cooler
latitude
warmer
latitude
cooler
distance from the ocean
warmer
distance from the ocean
The graph shows the number of groups of marine species from 600 million years ago (MYA) to the present.
Which of the following claims can be supported by the change in the graph that occurred 250 MYA?
New species of marine organisms evolved 250 MYA.
Biodiversity of marine organisms decreased 250 MYA.
Many marine organisms migrated to live on land 250 MYA.
Many species of marine organisms adapted to environmental changes 250 MYA.
Which of the following provides the best evidence that the climate of Massachusetts has changed over geologic time?
mountains
river valleys
igneous rock formations
glacial deposits
The pictures show the bone structure of the front limbs of three animals.
Which of the following best describes how the front limbs support the theory of evolution?
The bone structure of the animals was inherited from a common ancestor.
The bone structure of the animals has not changed over time.
The bone structure of the animals is getting more complex over time.
The bone structure of the animals evolved independently from different ancestors.
