What was the purpose of the Human Ecology Symposium held in 1968?

To discuss the state of the environment and its effects on human health

To raise funds for environmental nonprofits

To promote recycling initiatives

To celebrate the first Earth Day

How many colleges and public schools participated in the first Earth Day?

More than 10,000 public schools and 2,000 colleges

What notable event took place on March 21, 1970, related to Earth Day?

A day to honor the Earth was organized

Earth Day was declared a holiday

The first Earth Anthem was sung

The Human Ecology Symposium was held

What traditional activity is associated with Earth Day celebrations?

Ringing of bells, including the Japanese Peace Bell

let's dig deep | Quizalize

Ocean Animals Many kinds of animals live in the ocean. They are part of the ocean community. Let's meet some of these ocean animals. Most of the ones in this book are mammals, fish, or reptiles. I am a dolphin. I have a sleek body and a strong tail to swim fast. I live in a group called a pod, and I like to eat fish. I whistle to talk to other dolphins. I am a walrus, and I have ivory tusks. I use them to dig for clams and to protect myself. I live on ice and in cold water. My thick layer of fat keeps me warm. I am a hammerhead shark, and my head has a very funny shape. My eyes and nostrils are at the ends of lobes. I like to eat fish. I am a California sea lion. I am smart, noisy, and playful. I bark like a dog, and I am covered by short fur. I eat squid, octopus, and fish. I am an octopus. I have a soft body and no skeleton. I have eight arms with suckers. I shoot black ink from my body to hide and escape from danger. I can also change the color of my skin. I am a great white shark. I am a large and fierce shark. I have very sharp teeth that are shaped like triangles. I eat seals, dolphins, and fish. I am a manta ray. I have fins that look like wings. I am related to stingrays, but I do not sting. I am a sea horse, but I am not a horse. I am a fish. I change color to hide. Shrimp are my favorite food. Male sea horses, not females, carry eggs until they hatch. I am a leatherback turtle, the biggest turtle in the world. I lay eggs on land. Jellyfish are my favorite food. I am covered with leathery skin instead of a shell. I am a blue whale. I am the largest mammal ever to live. I make deep sounds that move through water. I eat tiny animals called krill. The ocean is home to all these animals. Many of them are endangered. They all suffer because of pollution and hunting. Keeping our oceans clean will help keep these animals alive.

Let's Dig-In Activity 4

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(車)B3L2 Let's Dig In!

Wonders of Nature Introduction. The world is full of interesting animals. Some animals look strange or have special skills. Let's look at some of these wonders of nature. Archerfish. Archerfish spit water at bugs. The bugs fall into the water, where the archerfish catch and eat them. Trap-Door Spider. The trap-door spider lives in a tunnel in the ground. Its home has a hidden door made of silk and dirt. The spider hides in its tunnel to hunt. Beaver. Beavers chew through tree trunks. They make dams out of trees, mud, and stones. Chameleon. Chameleons change color to hide themselves. They even change color to show how they feel. Flying Dragon. Flying dragons have skin on their sides that opens like wings. They jump and glide from tree to tree. Leaf Insect. The body parts of leaf insects look just like leaves. These animals blend in well with real leaves on trees. Leaf-Rolling Weevil. The female leaf-rolling weevil rolls a leaf into a cone. She lays her eggs inside the cone. The leaf hides and protects her eggs. Praying Mantis. The praying mantis holds its front legs in a praying position. A mantis has five eyes to help it hunt for food. Mole. Moles dig tunnels to find and eat worms. These animals have tiny eyes, but they are not blind. Sea Dragon. Sea dragons are small fish. They look like ocean plants. Their leafy parts help them catch food and hide from enemies. Conclusion. Interesting animals come in many shapes and sizes. They are all wonders of nature.

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