First grade sink or float science worksheet

Sink Float Identify Worksheet

This sink float identify worksheet lets first graders predict whether an apple, rock, duck, and more will sink or float in water. Includes an answer key for a fun, hands-on introduction to density.

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Categories: 1st Grade, Density, Format, Grade, Physical Science, Science, Subject, Worksheets Tags: 1st Grade, Density, Physical Science, Science, Sink or Float

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About this resource

Description

Learning whether objects sink or float is a young scientist’s first introduction to density. This sink float identify worksheet invites students to look at everyday objects and predict which ones will sink to the bottom and which ones will float on top of the water. It turns a simple science experiment into an easy, hands-on way to explore why some things are heavy for their size while others are light.

This first grade sink or float worksheet shows six familiar objects — an apple, a rock, a rubber duck, a leaf, a key, and a coin. For each one, students fill in the bubble to show whether it will sink or float, then use the challenge box to draw their own examples. Use it before or after a real water-tub experiment so children can compare their predictions with what actually happens.

What’s Included

1 print-ready PDF worksheet
Answer key
6 sink-or-float picture prompts plus a draw-your-own challenge

This sink float identify worksheet helps kids in three ways. First, it builds early science reasoning as students make and then check their predictions. Second, it introduces the idea of density in a concrete, picture-based way that first graders can understand. Third, the fill-in-the-bubble format keeps the page tidy and builds confidence while children practice a real physical science skill.

Teachers and parents can bring this lesson to life in many ways. Fill a tub or sink with water and test each object from the worksheet, then talk about any surprises. Go on a sink-or-float hunt around the house or classroom and sort the objects you find. Challenge students to make a piece of clay float by changing its shape, or to guess and test before every splash.