Britus International School Science Grade 7 Past Paper PDF, November 24, 2024

SCIENCE Grade-7 Teacher’s name: Ms. Joselyn M. Saclolo November 24, 2024 Sunday UNIT:2 Chapter: 4 – Cells and Organisms Lesson 1: Cells: The Basic Unit of Life  Lesson Objective: Students will explore the development of the microscop...

SCIENCE Grade-7 Teacher’s name: Ms. Joselyn M. Saclolo November 24, 2024 Sunday UNIT:2 Chapter: 4 – Cells and Organisms Lesson 1: Cells: The Basic Unit of Life  Lesson Objective: Students will explore the development of the microscope, understand its parts and functions, and learn how microscopes have advanced scientific discovery.  Laboratory Safety Always wear safety goggles and lab coats. Handle all glass slides and microscopes carefully to avoid breakage. Do not look directly into the microscope light source. Clean up spills immediately and report any accidents to the teacher. Follow your school's safety protocols at all times.  Cell Basic building block of all living things.  Starter Activity On page 138, read the selection “Development of Microscopes” 1. What does the people used in order to observe objects? 2. Who invented the microscope? 3. How might the lack of microscopic technology hundreds of years ago have had an impact on society at the time?  Living things and Nonliving things The development of microscopes and the discovery of “animalcules” were important steps toward a better understanding of living things. Living things reproduce. Living things grow and develop. Living things use energy. Living things are organized Living things respond to stimuli. Living things are made of one or more cells. How can you tell that this animal is made of cells?  Cell Theory Cell Theory - a set of three main ideas related to cells and living things. It states that all living things are made of one or more cells, that cells are the basic unit of structure and organization in living things, and that all cells come from preexisting cells. Guided Practice  ASSESSMENT Classwork Activity Name: _______________________________________________ Level: ___________________ Date: ____________ Match Column A with Column B. Write the letter of the correct answer. Column A Column B ____1. Anton van Leeuwenhoek A. Discovered that plants are made of cells ____2. Cell B. Discovered that animals are made of cells. ____3.Cell theory C. a set of three main ideas related to cell and living things. ____4. Theodor Schwann D. Basic building block of all living things ____5. Matthias Schleiden E. uses microscopes with pond water