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Seedling Evidence at the River Dam

Use seedling test records from a river dam viewpoint to investigate how sunlight and water affect plant growth.

Grade 2ScienceInteractive · Printable

Aligned to2-LS2-1

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What’s included

Single worksheet
Auto-graded online
1 NGSS standard
Printable answer key
14 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 2
Subject: Science
Question types: Fill in the blank, Multiple choice, Matching, Circle the answer, Sorting, Short answer

About this worksheet

What students practice

Students use observations to investigate how sunlight affects plant growth.
Students use observations to investigate how water affects plant growth.
Students identify fair-test choices and explain cause and effect from plant data.

How to use

Read the investigation record aloud and discuss what changed and what stayed the same. Have students use the records as evidence for each answer.

Curriculum

NGSS standard covered

2-LS2-1

Investigate whether plants need sunlight and water to grow.

Preview

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Seedling Evidence at the River Dam

Follow the evidence to learn how sunlight and water affect plant growth.

Read the seedling records

A class studied seedlings at a viewpoint beside a river dam. Read the investigation record. Use the observations to answer the questions.

The Viewpoint Seedling Study

The class placed similar seedlings on two shelves at the river dam viewpoint. For the sunlight test, Seedling P stood where sunlight reached it. Seedling Q stood behind a screen that blocked direct sunlight. Both received 20 milliliters of water each morning. The seedlings began with 3 leaves each. After 6 days, P had 8 leaves and was 12 centimeters tall. Q had 5 leaves and was 8 centimeters tall.

The class then started two more similar seedlings for a water test. Seedling R received sunlight and 20 milliliters of water each morning. Seedling S received sunlight but no added water. R and S began with 4 leaves each. After 6 days, R had 9 leaves and was 13 centimeters tall. S had 6 leaves and was 9 centimeters tall.

The students kept the seedlings on the same viewpoint shelf and checked both tests after 6 days. They counted leaves and measured height. They wanted to trace what changed, what happened next, and which care plan helped the seedlings grow more.

Which question can these records help the class answer?