Grade 07 Science - EC: S7.D.2.1.2
Grade 07 Science - EC: S7.D.2.1.2
Continuum of Activities
The list below represents a continuum of activities: resources categorized by Standard/Eligible Content that teachers may use to move students toward proficiency. Using LEA curriculum and available materials and resources, teachers can customize the activity statements/questions for classroom use.
This continuum of activities offers:
- Instructional activities designed to be integrated into planned lessons
- Questions/activities that grow in complexity
- Opportunities for differentiation for each student’s level of performance
Grade Levels
7th Grade
Course, Subject
Science
Related Academic Standards / Eligible Content
Activities
- What is a stationary front? What type of weather does it bring?
- What is an occluded front? What type of weather does it bring?
- What type of weather would you expect to find in an area of high air pressure? In an area of low air pressure?
- Summarize how warm and cold air masses move in a warm front. Why does this occur?
- The weather report this morning told you that a cold front is coming. What type of clothing should you wear today? Explain your reasoning.
Answer Key/Rubric
- A stationary front occurs when a cold and warm air mass meet, but neither has enough force to move the other. Water vapor in the warm air condenses and forms precipitation.
- An occluded front occurs when a warm air mass is caught between two cold air masses. The cold air masses move beneath the warm air mass and push it upward and separate it from the ground. As the warm air cools, the water vapor condenses into fog or precipitation.
- Weather associated with high air pressure may include, but is not limited to:
- Clear skies
- Sunny skies
- Calm weather
- Light winds
Weather associated with low air pressure may include, but is not limited to:
- High winds
- Warm air
- Clouds
- Precipitation
- Stormy weather
- Possible tropical storms
- Possible cyclones
- Acceptable responses may include, but are not limited to:
- Warm air masses move slowly.
- Warm fronts occur when a warm air mass meets a slow moving cold air mass.
- Since warm air is less dense than cold air, the warm air rises above the cold air.
- Warm fronts can bring clouds, rain, or storms.
- If the warm air is dry, it will create scattered clouds.
- If the warm air is humid, rain may fall where the warm and cold air masses meet.
- Since warm air masses move slowly, the weather may be cloudy and rainy for several days.
- Acceptable responses may include, but are not limited to:
- A cold front will decrease an area’s temperature.
- A cold air mass will force a warm air mass upward.
- As the warm air cools, it condenses. This creates clouds and precipitation.
- Cold front can cause sudden changes in weather.
- Cold fronts may cause strong winds, thunderstorms, or heavy rain or snow.
- You should wear warm clothing (pants, sneakers, sweater, jacket) and bring an umbrella or rain coat.
