
Biology ideas click fastest with real practice. This set gives your Grade 6-8 class ninety questions on excretory system, aligned to the same NGSS performance expectation.
Among the ninety questions, students will see prompts such as "How does the body respond to dehydration in terms of kidney function?", "How do the lungs contribute to excretion?", and "What is the primary waste product of protein metabolism excreted by the kidneys?"
All three worksheets cover the same topic in different question styles. That means you can use one as a pretest, another for practice or homework, and the third as a follow up quiz, without students ever seeing the same question twice.
This set is part of a complete NGSS aligned biology unit. The unit also covers From Cells to Systems, Cell Specialization, Body Systems Working Together, Circulatory System, Respiratory System, and Circulatory and Respiratory Systems, all in the same three worksheet format, so your classroom routine stays familiar while the topic changes.
Suitable for Grade 6-8 biology classes, and for NGSS aligned review at any point in the school year. This set is aligned to NGSS standard MS-LS1-3.



