ELEMENTARY SCIENCE FACTS & REVIEWERS

  THE HUMAN BODY SYSTEMS AND ORGANS By: Sir Pj Miana   In 6th-grade science, students typically learn about various body systems, their functions, and the organs associated with each system. Here's an overview of some of the key body systems, along with their definitions, functions, and the organs they include:   1. Circulatory System: Definition: The circulatory system is a network of blood vessels, the heart, and blood that transports nutrients, oxygen, hormones, and waste products throughout the body.   Organs: - Heart: Pumps blood to circulate throughout the body. - Blood Vessels (arteries, veins, capillaries): Tubes that carry blood to and from the heart. - Blood: Carries oxygen, nutrients, and hormones to cells and removes waste products.   2. Respiratory System: Definition: The respiratory system is responsible for the exchange of gases, primarily oxygen and carbon dioxide, between the body and the environment.   Organs: - Lungs: Main organs for gas exchange. - Trachea (wind

  Masculo-Skeletal System SCIENCE 6 Q2_W1_QUIZ_1 CLICK HERE TO REVIEW FIRST __________________________________________________________________________________ Direction: Write the letter and the text of the correct answer. 1. What is the primary function of bones in the musculoskeletal system? a) Blood cell production   b) Providing structural support and protection   c) Transmitting force generated by muscle contraction   d) Facilitating joint flexibility     2. Which component of the musculoskeletal system is responsible for movement by contracting and relaxing in response to nerve signals? a) Joints   b) Ligaments   c) Muscles   d) Tendons     3. What is the role of ligaments in the musculoskeletal system? a) Transmitting force generated by muscle contraction   b) Providing structural support and protection   c) Connecting muscles to bones   d) Providing stability to joints     4. Where does bone marrow play a crucial role in blood cell

MUSCULO-SKELETAL SYSTEM Pj Miana Understanding the Musculoskeletal System   Introduction: - The musculoskeletal system is a complex network of structures that provides support, stability, and movement to the human body. - Comprising bones, muscles, joints, ligaments, and tendons, this system is essential for maintaining posture and facilitating various physical activities.   Components of the Musculoskeletal System:   1. Bones:    - Act as the framework of the body, providing structural support and protection for vital organs.    - Bone marrow inside bones plays a crucial role in blood cell production.   2. Muscles:    - Responsible for movement by contracting and relaxing in response to nerve signals.    - Divided into voluntary (skeletal) muscles and involuntary (smooth and cardiac) muscles.   3. Joints:    - Points where bones meet, allowing for movement and flexibility.    - Various types of joints, including hinge joints (e.g., elbow), ball-and-

SCIENCE QUIZ BEE REIVIWER NO. 5 - MIXTURES **EASY:** 1. What is formed when two or more substances are combined?    a. Pure Substance     b. Mixture     c. Matter     d. Solid Matter 2. What mixture has a uniform composition and exists in a single form?    a. Homogeneous Mixture     b. Heterogeneous Mixture     c. Matter     d. Pure Substance 3. What mixture has NO uniform composition and exists in two or more phases?    a. Matter     b. Pure Substance     c. Homogeneous Mixture     d. Heterogeneous Mixture 4. Which of the following materials can be dissolved?    a. Stone     b. sugar     c. leaf     d. clot 5. Which is NOT a heterogeneous mixture?    a. Cement     b. Salad     c. halo-halo     d. air **AVERAGE:** 1. If you mix hot water and coffee powder, what will happen?    a. The coffee powder will not dissolve in water.    b. The coffee powder will dissolve in water thoroughly.    c. The coffee powder will dissolve in water partially.    d. None of the above 2. Which of the follow

 SCIENCE QUIZ BEE REVIEWER No. 4 MIXTURES EASY 1.       What is formed when two or more substances are combined? a.Pure Substance           B. Mixture    C. Matter          D. Solid Matter 2.       What mixture has a uniform composition and exist in single form? a.Homogeneous Mixture                    C. Matter b. Heterogeneous Mixture                   D. Pure Substance       3.What mixture has NO uniform composition and exist in two or more phases? a.Matter                                                   C. Homogeneous Mixture b. Pure Substance                                  D. Heterogeneous Mixture         4. Which of the following materials can be dissolved? a. Stone                       c. sugar               b. leaf                        d. clot      5. Which is NOT a heterogeneous mixture?             a. . Cement                   b. Salad        c. halo-halo         d. air   AVERAGE 1.       If you are going to mix hot water and coffee p