BELLLWORK

Objects such as ships and boats can create underwater noise pollution. How might this negatively affect marine wildlife?

Acid Rain

Secondary Pollutants Formed in the Atmosphere

Objectives

In this lesson, students will…

1)Identify causes of acid rain

2)Discuss the effects of acid rain on ecosystems

TPSThis is a picture of Cleopatra’s Needle, an ancient Egyptian statue in Central Park in a New York City.

The statue has suffered more erosion in the past 100 years than it did in the previous 3,000. Why???

Cleopatra’s Needle

The needle is becoming eroded by acid rain.

acid rain is rainwater with a high concentration of acids.

Acid Rain

pH is used to measure the acidity of a substance.

Pure water has a pH of 7.

As pH decreases, it becomes increasingly acidic.

Effect on Ecosystems

Acid rain can cause the soil to become acidic, harming any plants that absorb nutrients from the soil.

More Effects

Acid rain that falls on aquatic ecosystems can change the pH of the water, killing organisms.

POP QUIZ

You have 10 minutes to look over your notes from this week (everything about air pollution).

When 10 minutes are up, put everything away and we will take a pop quiz.

GROUP QUIZ

Before taking the quiz, you will have 10 minutes to discuss the quiz with your group.

Rules:1)Do not get up or talk to another group2)Do not write anything down