Scientific investigations and engineering design take center stage in this Grade 6 Science worksheet, where students practise turning observations into investigable questions and planning ways to solve problems. Using examples such as plant growth, leaf measurement, insect observations, and paper bridge testing, students explore how scientists gather evidence and how engineers evaluate proposed solutions against design criteria.

Created for the Texas Science 6 lesson topic Investigations, Evidence and Systems, this resource connects scientific inquiry with practical decision-making. Students examine what makes a question investigable, how different investigation types serve different purposes, and why a reliable plan must identify appropriate tools, steps, safety practices, and evidence to record.

From observations to evidence-based plans

The informational passage introduces three approaches to scientific investigation. Students distinguish descriptive investigations, which record details about a subject or situation; comparative investigations, which examine differences or similarities between groups; and experimental investigations, which deliberately change one factor while keeping other important conditions the same.

Engineering design adds another layer of problem-solving. Students consider a paper bridge that must hold weights while using little material, identify design criteria before testing, and use test results to suggest improvements. The examples reinforce the difference between asking a scientific question and developing a solution to meet a defined need.

Skills students practise

Multiple-choice questions ask students to recognize useful observations, select suitable measuring tools, distinguish investigation methods, and identify appropriate next steps in design testing. True-or-false statements check their understanding of evidence collection, investigation planning, design criteria, and laboratory safety. Short-answer prompts require students to explain the difference between an investigable question and an engineering problem, select resources for comparing how quickly paper absorbs water, and justify why a method and safety practices belong in a plan.

A labeled diagram activity, categorization task, and short-note section provide additional ways to organize and record learning. Throughout the worksheet, students practise choosing methods that fit a question rather than treating every investigation as the same process.

What comes with the worksheet

• Printable Grade 6 Science worksheet with an informational reading passage and varied question types
• Separate PDF answer key for checking responses
• Student Notes lines at the bottom of the worksheet
• Teacher Guide included in the answer key PDF, featuring Learning Objectives, Teaching Tips, Discussion Questions, and Common Mistakes

Useful for inquiry lessons and review

Use this scientific inquiry worksheet when introducing investigation planning, reviewing the difference between science and engineering, or checking students' readiness to plan classroom investigations. It can support individual practice, a follow-up to teacher explanation, or a review before students begin practical work. The examples also create natural discussion opportunities about selecting evidence, keeping important conditions consistent, and following approved safety procedures.

The resource is identified with the Texas Science 6 topic and TEKS framework provided for this lesson. Its separate answer key and accompanying Teacher Guide give teachers both a response-checking resource and practical prompts for reinforcing the reasoning behind students' choices.