This engaging science passage for grades 6-8 explores the vital role that transportation plays in climate change. Students will learn how vehicles like cars, trucks, ships, and airplanes contribute to greenhouse gas emissions and increase the Earth's temperature. The passage introduces key concepts such as fossil fuels, carbon dioxide, and global warming, with vocabulary highlighted for easy understanding. Real-world examples show how transportation affects our planet and what we can do to help. The content aligns with NGSS standards and encourages critical thinking through quizzes and writing activities. Audio integration supports diverse learners. This resource is perfect for science classrooms looking for accessible, standards-based content on environmental science, climate change, and human impact.
Written by Workybooks TeamPublished by Workybooks
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Every time you ride in a car, bus, or airplane, that trip has a carbon cost. Transportation refers to how people and goods move from place to place. Most cars, trucks, buses, ships, and airplanes run on fuels made from oil. These fossil fuels include gasoline, diesel, and jet fuel. When engines burn these fuels, they release carbon dioxide directly into the air.
Scientists explain that transportation is one of the largest sources of greenhouse gas emissions worldwide. Evidence shows that these emissions trap heat in Earth's atmosphere. This process contributes to climate change. Transportation creates so many emissions partly because millions of people and goods are constantly on the move. Every day, vehicles carry students to school, workers to jobs, and products to stores.
The carbon cost varies depending on the type of travel. A quick car trip to the grocery store releases some carbon dioxide from the tailpipe. A cargo ship crossing the ocean burns thousands of gallons of diesel fuel over several weeks. A jet airplane leaves a visible contrail in the sky and releases large amounts of carbon dioxide at high altitudes. Scientists observe that longer trips and certain types of vehicles produce more emissions than others. A single flight across the country can release as much carbon dioxide per person as several months of driving.
Real-world data helps us understand the scale of this problem. In the United States, transportation accounts for about one-third of all carbon dioxide emissions. Personal vehicles like cars and trucks make up the largest portion of transportation emissions. This happens because so many families own vehicles and use them daily.
Solutions exist that can reduce transportation emissions significantly. Electric vehicles run on batteries instead of gasoline. They produce no tailpipe emissions. When charged using renewable energy sources, electric vehicles can cut emissions dramatically. Public transit systems like buses and trains move many people at once. This means fewer individual vehicles on the road and lower emissions per person. Scientists and engineers continue developing cleaner fuels and more efficient engines.
Understanding transportation's role in climate change matters because our choices can make a difference. Choosing to walk, bike, carpool, or use public transit reduces individual carbon footprints. Supporting policies that promote electric vehicles and better public transportation can create larger changes. Every trip we take connects to Earth's climate system in measurable ways.
Interesting Fact: A single cargo ship can burn more than 150 tons of fuel per day while crossing the ocean. That equals the fuel consumption of about 50 million cars driving the same distance.
What do most cars, trucks, buses, ships, and airplanes run on?
Electricity from batteriesFuels made from oil like gasoline, diesel, and jet fuelSolar energyWind power
What happens when engines burn fossil fuels?
They create clean water vapor onlyThey release oxygen into the airThey release carbon dioxide directly into the airThey absorb greenhouse gases
What does the term 'greenhouse gas emissions' mean in the passage?
Gases that help plants grow in greenhousesGases released into the atmosphere that trap heat and contribute to climate changeGases that cool down the atmosphereGases that only come from factories
According to the passage, what is a 'contrail'?
A type of fuel used by airplanesA visible trail of condensed water vapor left behind by aircraftA measurement of carbon emissionsA type of electric vehicle
Why does transportation create so many emissions?
Because vehicles are poorly designedBecause millions of people and goods are constantly on the moveBecause all vehicles run on electricityBecause people only travel on weekends
How does a single flight across the country compare to driving in terms of carbon dioxide emissions?
A flight releases less carbon dioxide than one day of drivingA flight releases about the same as one week of drivingA flight can release as much carbon dioxide per person as several months of drivingA flight releases no carbon dioxide
What advantage do electric vehicles have over gasoline-powered vehicles?
They are always cheaper to buyThey produce no tailpipe emissionsThey can travel farther on a single charge than gas cars can on a tankThey never need to be recharged
How does public transit help reduce emissions?
It moves many people at once, meaning fewer individual vehicles on the roadIt only operates on weekendsIt uses more fuel than personal vehiclesIt doesn't help reduce emissions at all
True or False: In the United States, transportation accounts for about one-third of all carbon dioxide emissions.
TrueFalse
True or False: All types of transportation produce the same amount of carbon dioxide emissions regardless of distance or vehicle type.