This NGSS-aligned 4th grade science passage introduces the concept of speed in simple, easy-to-understand terms. Speed tells us how fast something moves and is explained using distance and time. The passage uses examples from daily life, such as walking, running, cars, and trains, as well as animals like snails and cheetahs, to make learning fun and relatable. It also clarifies that speed is different from direction and connects the concept to reference points, such as being on a moving train. A fun fact about cheetahs adds excitement. This passage aligns with NGSS PS2.A: Forces and Motion and helps students build prediction and comparison skills by understanding how to measure and describe speed. Eight multiple-choice questions across different Depth of Knowledge levels test recall, inference, and application. The passage is audio integrated, making it accessible to diverse learners. Keywords include speed, NGSS PS2.A, 4th grade science, distance and time, and forces and motion to support SEO and ensure the material is easy for teachers and parents to find.
Written by Workybooks TeamPublished by Workybooks
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What is Speed?
Speed tells us how fast or slow something moves. It is a way to measure how much distance an object travels in a certain amount of time. The faster something moves, the more distance it covers in less time. The slower it moves, the less distance it covers in the same time.
We can use a simple formula to find speed: Speed = Distance ÷ Time. This means we divide the distance traveled by the time it took. For example, if you walk 2 miles in 1 hour, your speed is 2 miles per hour, or 2 mph. If you run 10 feet in 2 seconds, your speed is 5 feet per second.
Different things move at different speeds. A cheetah is the fastest land animal and can run up to 70 mph! A car on the highway usually goes about 65 mph. A kid running might reach 10 mph. A turtle walks very slowly at 0.2 mph, and a snail moves even slower—only about 0.03 mph.
We measure speed using units like miles per hour (mph) or feet per second. Speed is like asking, “How many steps do you take while your friend counts to ten?”
Speed can change. When you start moving, you might go slow, then speed up, or slow down, and finally stop. Cars have a tool called a speedometer that shows how fast they are going. You can measure your own speed on the playground by timing how long it takes to walk or run across it, and then comparing your speeds.
Knowing speed helps us in races, planning trips, and staying safe. It is a helpful way to understand how objects move in our world.
Interesting Fact: The fastest speed ever recorded for a human is about 27.8 mph, set by sprinter Usain Bolt!
What does speed measure?
How fast something movesHow heavy something isHow tall something isHow old something is
Which is the fastest land animal?
CheetahTurtleSnailCar
What tool shows speed in a car?
SpeedometerThermometerBarometerOdometer
If you run 10 feet in 2 seconds, what is your speed?
5 feet per second10 feet per second2 feet per second20 feet per second
Why do we measure speed on the playground?
To compare walking and runningTo find northTo make it rainTo catch animals
What unit measures speed in miles per hour?
mphkgcmliter
Speed can never change. True or false?
TrueFalse
What does 'distance' mean?
How far something travelsHow fast you runHow loud something isHow much something weighs
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Build comprehension skills
Auto-graded quiz
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Parents
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Topics
speedNGSS PS2.A4th grade scienceforces and motiondistance and timescience passage
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