ELEMENTARY SCIENCE FACTS & REVIEWERS

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

 SCIENCE QUIZ BEE REVIEWER No. 3 TOPIC: EARTHQUAKES, SOLAR SYSTEM AND THE UNIVERSE   Science VI – Grade 6 Quarter 4 Reviewer   Quarter 4- Module 1 (Week 1) Easy Question: 1. What is the term that refers to the ground above the focus? A. epicenter            B. impact      C. intensity   D. magnitude 2. What scale is used to measure an earthquake’s magnitude? A. Mercalli Scale    B. Moment Magnitude Scale    C. Richter     D. B and C 3. What causes earthquakes? A. explosive materials  B. landslides C. super typhoon  D. underground movements of tectonic plates 4. What is earthquake intensity? A. a measure of seismic risk B. a measure of damage done C. a measure of energy released D. a measure of an earthquake focus 5. When does a tsunami occur? When an earthquake _______. A. is strong                C. occurs on land B. is weak                  D. occurs on the ocean floor   Average Question:   1. Which of the following natural calamities is NOT caused by the movement of the Earth’s cru