3rd Grade Sink or Float Investigation

3rd Grade Sink or Float Investigation Worksheet (Matter and Energy, TEKS 3.6A)

Students read a sink or float table with predictions and results, see where a prediction was wrong, count the objects that floated, then use what they learned to predict whether a cork, a rock, and a key will float or sink. Simple black and white doodles and big, easy to read text keep the focus on the science, not the reading. No prior knowledge is needed: the page teaches the idea first.

What's Inside

• A teach strip on testing whether objects sink or float
• Part A: read a prediction and result table and circle answers
• Part B: write F or S for new objects, with one done
• A friendly squirrel guide that points out the key idea
• A visual answer key with answers marked in red, plus a short teacher note

How Teachers Use It

Use it as a mini lesson follow up, a quick check, or a science center. It takes 6 to 8 minutes and prints clearly in black and white. The focus skill is testing and recording whether materials sink or float, part of the grade 3 matter and energy strand.

Why It Works

Each sheet teaches one idea with everyday objects kids already know. Every activity has a done for you example, and students only circle, sort, number, or write a letter or word, so they can finish on their own. Wrong choices are believable, not silly, so students have to think. Pair it with the other Matter and Energy sheets to cover properties, measuring, states of matter, changes of state, and choosing and combining materials.