2ND GRADE SCIENCE โ€ข INTERDEPENDENT RELATIONSHIPS IN ECOSYSTEMS

Observing Living Things โ€” Make observations of living things in a habitat and record what you notice.

Learn how to look closely at plants and animals in their homes and write down what you see!

Why Do People Watch Living Things?

People have always been curious about animals and plants. Long ago, people watched birds fly and fish swim. They wanted to know how living things find food and stay safe. This is called observing. Observing means looking closely and carefully at something.

Scientists have been observing living things for a very long time. Let's look at some important moments in history!

Long Ago
Cave Paintings
Thousands of years ago, people drew pictures of animals on cave walls. These were some of the first observations ever recorded!
1800s
Nature Journals
Scientists like Charles Darwin traveled the world. He drew pictures of animals and plants in his notebook.
1900s
Watching Animals Up Close
Jane Goodall spent years watching chimpanzees in Africa. She wrote down everything she saw them do!
Today
Everyone Can Observe!
Now kids and grown-ups can observe living things anywhere โ€” in backyards, parks, and even school playgrounds!

So here is the big question: How can we look closely at living things and write down what we notice? That is what this lesson is all about!

Big Ideas About Observing

Before we go outside to observe, we need to learn some important ideas. These ideas help us be great scientists!

1

A Habitat Is a Home

A habitat is the place where a plant or animal lives. It gives them food, water, and shelter.
2

Use Your Senses

Good observers use their eyes to see, ears to hear, and nose to smell. We watch how things move, what color they are, and what sounds they make.
3

Write It Down

Scientists record what they see. That means they write words or draw pictures in a journal so they don't forget.
4

Living Things Need Each Other

Plants and animals in a habitat help each other. Bees help flowers grow. Trees give birds a place to live.
โœฆ KEY TAKEAWAY
Think of observing like being a detective! A detective looks for clues very carefully. When you observe living things, you are looking for clues about how they live. You use your eyes, ears, and nose. Then you write down the clues in your notebook!

A Pond Habitat โ€” What Can We See?

Let's look at a picture of a pond habitat. A pond is a small body of water. Many living things call it home!

This pond habitat has many living things! Can you spot the bird in the tree, the frog by the water, and the fish swimming in the pond? The plants like lily pads and cattails also live here.

When we observe a pond, we can notice many things. The bird is sitting in the tree. The frog is near the edge of the water. The fish is swimming under the surface. Each living thing has a special place in this habitat.

How to Be a Great Observer

Being a great observer means following some simple steps. Scientists follow these steps every time they study living things. You can do it too!

The 4 Steps of Observing

  1. Step 1 โ€” Stop and Look. Find a quiet spot. Be very still so you don't scare the animals. Look all around you.
  2. Step 2 โ€” Use Your Senses. What do you see? What do you hear? What do you smell? Do NOT touch or taste animals or plants you don't know!
  3. Step 3 โ€” Ask Questions. Wonder about what you see. Why is the bird up in the tree? Why is the frog green?
  4. Step 4 โ€” Record What You Notice. Draw a picture or write words in your science journal. Write the date so you remember when you saw it.
โš ๏ธ Safety Tip!
Always observe living things from a safe distance. Do not pick up wild animals. Do not eat plants you find outside. Be gentle and respectful to all living things!

When we record observations, we can write simple things like "I see a brown squirrel. It is eating a nut. It is sitting on a tree branch." That is a great observation! You told us what it looks like, what it is doing, and where it is.

Different Habitats to Explore

Living things live in many different kinds of habitats. Each habitat has different plants and animals. Let's look at some habitats you might visit!

Here are four habitats you might visit. A forest has big trees and animals like deer. A pond has water animals. A garden has flowers and bugs. Even your school yard is a habitat!

No matter which habitat you visit, you can always find living things to observe. Even a small patch of grass has bugs, plants, and maybe even a bird looking for worms!

Let's Practice Observing Together!

Let's pretend we are outside at a park. We found a garden with flowers. Let's go through the steps together!

Observing a Garden Habitat
1
Step 1 โ€” Stop and LookWe sit on a bench near the garden. We are quiet and still. We look around slowly.
We can see flowers, leaves, and something moving!
2
Step 2 โ€” Use Your SensesWe look more closely. We see a yellow butterfly flying near a red flower. We hear a buzzing sound. That's a bee! We smell the sweet flowers.
We noticed: a yellow butterfly, a buzzing bee, red flowers, and a sweet smell.
3
Step 3 โ€” Ask QuestionsWe wonder: Why does the butterfly go to the flowers? Is it looking for food? Why is the bee buzzing?
Our question: Why do the butterfly and bee visit the flowers?
4
Step 4 โ€” Record What You NoticeWe open our science journal. We write the date: October 5. We write: "I saw a yellow butterfly on a red flower. A bee was buzzing near the flower too. The flowers smelled sweet." We also draw a picture of the butterfly on the flower.
We made a great observation and recorded it!
โญ Great Job!
A good observation tells three things: what it looks like, what it is doing, and where it is.

Ways to Record What You See

There are many ways to record your observations. Some kids like to write words. Some kids like to draw pictures. Both are great! Let's compare some ways to record.

Different ways to record your observations
Recording MethodWhat You DoWhen It Helps
Drawing a PictureSketch what the living thing looks like. Use colors if you can.Great when you notice shapes, colors, or sizes.
Writing WordsWrite sentences about what you see, hear, and smell.Great when you notice actions, sounds, or smells.
Making a ChartMake a list or table of living things you find.Great when you want to count how many of each thing you see.
Taking a PhotoUse a camera or tablet to snap a picture.Great when something moves fast and you can't draw it.
โœฆ KEY TAKEAWAY
Recording is like saving a memory! If you don't write it down or draw it, you might forget what you saw. Your science journal is like a treasure chest full of all the cool things you have discovered!

From Observing to Understanding Ecosystems

When you observe living things, you start to notice something amazing. Plants and animals need each other! This is what scientists call an ecosystem. An ecosystem is all the living and non-living things in a place working together.

Your science journey
What You Learn NowWhat You'll Learn Later
Observe plants and animals in a habitatLearn how animals depend on plants for food
Record what living things look like and doCreate food chains showing who eats what
Notice that different habitats have different living thingsUnderstand why certain animals live in certain places
Ask questions about what you seeDesign experiments to answer your questions

Every great scientist started by simply watching and wondering. Your observations today are the first step toward understanding how the whole world of living things works together!

Practice Problems

Now it's your turn! Try to answer these questions about observing living things.

PROBLEM 1 โ€” CONCEPTUAL
What does it mean to observe a living thing?
PROBLEM 2 โ€” BASIC IDENTIFICATION
You go to a pond and see a green animal sitting on a rock near the water. It jumps into the pond. What living thing might this be? What habitat does it live in?
PROBLEM 3 โ€” INTERMEDIATE
You are observing a garden. You see a bee flying from flower to flower. Write an observation sentence that tells what it looks like, what it is doing, and where it is.
PROBLEM 4 โ€” APPLIED
Imagine you observe a bird pulling a worm out of the ground and eating it. Then you see a flower growing in the same dirt. How do the bird, the worm, and the flower all need each other in this habitat?
PROBLEM 5 โ€” CRITICAL THINKING
You observe the same tree in your school yard two different times โ€” once in fall and once in spring. In fall, the leaves are orange and falling off. In spring, the tree has green leaves and a bird nest in it. Why is it important to observe the same habitat at different times?

What We Learned

In this lesson, we learned that observing means looking closely and carefully at living things. A habitat is the place where plants and animals live, like a pond, forest, garden, or school yard. We use our senses โ€” our eyes, ears, and nose โ€” to notice what living things look like, what they are doing, and where they are.

We also learned that good scientists record their observations by writing words, drawing pictures, making charts, or taking photos. We follow four steps: stop and look, use your senses, ask questions, and record what you notice. Living things in a habitat need each other, and by observing them, we start to understand the amazing ecosystem they share!

Varsity Tutors โ€ข 2nd Grade Science โ€ข Observing Living Things