This learning resource is available in interactive and printable formats. The interactive worksheet can be played online and assigned to students. The Printable PDF version can be downloaded and printed for completion by hand.
This science passage, 'The Butterfly's Busy Day', is crafted for second-grade students to understand cause and effect relationships in nature, aligning with NGSS 2-LS2-1. It details a butterfly's observable patterns, such as visiting flowers and sipping nectar, and links these actions (effects) to underlying causes like hunger and the need for energy. The passage also introduces the concept of pollination as a reciprocal cause-and-effect relationship between butterflies and flowers. This resource enhances reading comprehension and fosters an appreciation for the interconnectedness and predictable patterns in the natural world through a relatable animal example.
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It was a warm summer afternoon, and a bright, colorful butterfly fluttered past. It landed on a purple flower and unrolled a long, thin tongue to sip something sweet. Then it flew to another flower, and another, doing the same thing.
Why was this beautiful butterfly so busy visiting all those flowers? Let's look for the causes of its actions and the effects we can observe.
Observable Pattern 1: The butterfly flies from flower to flower, landing on each one.
Cause: The butterfly is hungry and needs food.
Effect: It sips sweet nectar from the flowers. This gives the butterfly energy to fly.
Observable Pattern 2: As the butterfly sips nectar, tiny yellow dust (pollen) from the flower sticks to its body. Then, when it flies to a new flower, some of that pollen rubs off.
Cause: Flowers need help to share pollen with other flowers so they can make seeds.
Effect: The butterfly carries pollen from one flower to another, helping the flowers grow new seeds. This is how flowers make more flowers!
So, the butterfly's hunger (a cause) makes it visit flowers (an effect). And its visits (a cause) help flowers make new seeds (an effect). Every flap of its wings, every sip of nectar, has a reason and creates an observable pattern in nature.
What did the butterfly do on the purple flower?
It built a nest.It rolled up its tongue.It sipped something sweet.It laid an egg.
What is the cause for the butterfly flying from flower to flower?
It is playing a game.It is hungry and needs food.It wants to hide.It is counting the flowers.
What does the butterfly sip from the flowers?
WaterLeavesPollenNectar
What is the effect of the butterfly sipping nectar from flowers?
It loses energy. It gets energy to fly.It turns green.It grows bigger wings.
What sticks to the butterfly's body as it sips nectar?
Tiny green leavesSweet liquidTiny yellow pollenWater drops
What is the main idea of this passage?
How to grow flowers. The different colors of butterflies.How a butterfly's actions have causes and help flowers. The taste of nectar.
If a plant has many flowers, what is a likely cause for many butterflies visiting it?
The plant has no leaves.The flowers have lots of nectar.The plant is very tall.The flowers are small.
Which of these is an example of an observable pattern from the story?
The butterfly being beautiful. The butterfly's hunger.The butterfly flying from flower to flower.The butterfly needing energy.