Supporting Evidence
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SSAT Middle Level: Reading › Supporting Evidence
Read this historical event analysis: The first successful airplane flight takes place on December 17, 1903, at Kitty Hawk, North Carolina. The main idea is that careful testing and design improvements lead to breakthrough inventions. Orville and Wilbur Wright study gliders for years and keep detailed notes. They build a wind tunnel in 1901 to test wing shapes and measure lift. On the flight day, the Flyer stays in the air for 12 seconds and travels 120 feet. Orville later writes, “We had to learn by doing” (Wright, 1903/1953). The passage also says strong winds make the day difficult. Which piece of evidence best supports the main idea of the passage?
Strong winds make the day difficult at Kitty Hawk, North Carolina.
They build a wind tunnel in 1901 to test wing shapes and measure lift.
Many inventors hope their ideas will work the first time they try.
The Flyer stays in the air for 12 seconds and travels 120 feet.
Explanation
This question tests SSAT Middle Level skills in selecting evidence to support a given answer. The ability to identify supporting evidence involves recognizing details that directly affirm the main idea or specific claims within a text. In this passage, the author presents the main idea that careful testing and design improvements lead to breakthrough inventions, using the Wright brothers' first flight as an example. Choice A is correct because it provides direct evidence that they built a wind tunnel in 1901 to test wing shapes and measure lift, demonstrating their systematic approach to testing and improving their design. Choice C is incorrect because it offers information about the flight's duration and distance, which shows the achievement but not the process of careful testing and improvement that led to it. To help students: Teach strategies for identifying key ideas and associated evidence, such as looking for examples of process and methodology rather than just outcomes. Practice distinguishing between evidence of results versus evidence of the methods that produced those results.
Read this science explanation: Photosynthesis lets plants make sugar using light, water, and carbon dioxide. The main idea is that light intensity affects how fast photosynthesis happens. In a classroom test, Jamal puts pondweed under lamps. He counts oxygen bubbles for one minute at different distances. At 10 cm, he counts 28 bubbles; at 20 cm, 17 bubbles; at 30 cm, 9 bubbles. A textbook states, “More light energy can drive more reactions, up to a limit” (National Geographic Society, 2020). The passage adds that temperature stayed the same during the test. Which detail from the passage supports the conclusion that brighter light increases photosynthesis?
Many scientists agree plants need sunlight to grow well.
At 10 cm, Jamal counts 28 bubbles, but only 9 bubbles at 30 cm.
Jamal uses pondweed because it is easy to place in a clear cup.
Temperature stayed the same, so light could not change bubble counts.
Explanation
This question tests SSAT Middle Level skills in selecting evidence to support a given answer. The ability to identify supporting evidence involves recognizing details that directly affirm the main idea or specific claims within a text. In this passage, the author presents the conclusion that brighter light increases photosynthesis, and the experiment measures oxygen bubble production at different distances from a light source. Choice A is correct because it provides direct evidence showing that bubble count decreases as distance from light increases (28 bubbles at 10 cm versus 9 bubbles at 30 cm), demonstrating the relationship between light intensity and photosynthesis rate. Choice D is incorrect because while it mentions temperature control, it illogically concludes that light couldn't affect bubble counts, contradicting the experimental results. To help students: Teach strategies for identifying key ideas and associated evidence, such as looking for numerical data that supports scientific conclusions. Practice distinguishing between experimental results and background information in scientific texts.
Read this science explanation: Gravity is a force that pulls objects toward each other. The main idea is that gravity acts on all objects with mass, even when we do not notice it. In a simple test, Keisha drops a tennis ball and a textbook from the same height. Both hit the floor at nearly the same time, though air resistance slows the lighter ball slightly. A scientist explains, “On Earth, gravity gives all objects the same acceleration if air effects are small” (NASA, 2023). The passage adds that the objects fall faster from higher places. Which detail from the passage supports the conclusion that gravity affects different objects similarly?
Both objects hit the floor at nearly the same time when dropped together.
Many students enjoy experiments that make loud sounds when items land.
Air resistance proves gravity only works on light objects in classrooms.
The objects fall faster from higher places because they travel farther.
Explanation
This question tests SSAT Middle Level skills in selecting evidence to support a given answer. The ability to identify supporting evidence involves recognizing details that directly affirm the main idea or specific claims within a text. In this passage, the author explains that gravity acts on all objects with mass and asks for evidence that gravity affects different objects similarly. Choice A is correct because it provides direct evidence that both a tennis ball and textbook hit the floor at nearly the same time when dropped, demonstrating that gravity affects objects of different masses in similar ways. Choice B is incorrect because it offers information about falling speed from different heights, which doesn't address how gravity affects different objects similarly. To help students: Teach strategies for identifying key ideas and associated evidence, such as looking for experimental results that directly demonstrate scientific principles. Practice distinguishing between evidence that supports the specific claim versus general information about the topic.
Read this science explanation: Earth’s seasons happen because Earth’s axis tilts about 23.5 degrees. The main idea is that tilt changes sunlight angle and day length during the year. When the Northern Hemisphere tilts toward the Sun, it gets more direct sunlight and longer days. Yuki measures shadows at noon in June and December and finds the December shadow is much longer. A space science guide notes, “The tilt, not distance from the Sun, causes seasons” (European Space Agency, 2022). The passage adds that both hemispheres have opposite seasons at the same time. Which quote provides the strongest evidence that distance is not the main cause of seasons?
Yuki measures shadows at noon and notices they change between months.
“The tilt, not distance from the Sun, causes seasons” (European Space Agency, 2022).
Both hemispheres have opposite seasons at the same time during the year.
Many people feel summer is warmer, so the Sun must be closer then.
Explanation
This question tests SSAT Middle Level skills in selecting evidence to support a given answer. The ability to identify supporting evidence involves recognizing details that directly affirm the main idea or specific claims within a text. In this passage, the author explains that Earth's tilt causes seasons and asks for evidence that distance from the Sun is not the main cause. Choice A is correct because it provides a direct quote from a space science guide explicitly stating "The tilt, not distance from the Sun, causes seasons," which directly addresses and refutes the distance misconception. Choice C is incorrect because while it mentions opposite seasons in different hemispheres, it doesn't explicitly address why distance isn't the cause. To help students: Teach strategies for identifying key ideas and associated evidence, such as looking for authoritative quotes that directly address common misconceptions. Practice distinguishing between evidence that implies a conclusion versus evidence that explicitly states it.
Read this current events report: A city library launches a “Read and Repair” program in 2025. The main idea is that libraries can support community learning beyond books. The program offers free weekly workshops on fixing small items like torn backpacks. In the first month, 120 residents attend, and 45 items get repaired. Maya, a librarian, says, “We are teaching skills people can use right away” (City Library News, 2025). A local teacher adds that students practice problem-solving when they mend things. The report also notes the library extends Saturday hours. What evidence does the author use to support the main idea?
Some residents think workshops are less useful than borrowing new items.
In the first month, 120 residents attend, and 45 items get repaired.
The library extends Saturday hours to help families visit more often.
Libraries have always been quiet places for reading and studying.
Explanation
This question tests SSAT Middle Level skills in selecting evidence to support a given answer. The ability to identify supporting evidence involves recognizing details that directly affirm the main idea or specific claims within a text. In this passage, the author presents the main idea that libraries can support community learning beyond books through the "Read and Repair" program. Choice A is correct because it provides direct evidence that 120 residents attended and 45 items were repaired, demonstrating concrete community learning outcomes beyond traditional book services. Choice B is incorrect because extending Saturday hours relates to general library access rather than specifically supporting the idea of learning beyond books. To help students: Teach strategies for identifying key ideas and associated evidence, such as looking for specific examples and statistics that demonstrate the main claim. Practice distinguishing between general library improvements and evidence that specifically supports expanded learning services.