Science · Sixth Grade, Primary · Unit 4: Life Processes in Humans and Animals · First Semester
A 10-question quiz; after every question you'll see the right answer with an explanation.
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Our bodies move through the teamwork of bones, joints, and muscles, and we sense what is around us through the nervous system and the senses. In this lesson you learn about the skeleton, the types of joints, how muscles work in pairs, and how the brain receives signals.
💡 Tip: Try it with your arm: bend your elbow and feel the biceps contract, then straighten it and you'll feel the muscle on the back of your arm contract. A muscle only pulls; it never pushes.
Ghada explains the lesson and answers your questions about it. Log in to get started.
Because a muscle can pull a bone when it contracts, but it cannot push it. So one muscle contracts to move the bone in one direction, and the opposite muscle contracts to bring it back.
A hinge joint allows movement in one direction, like a door, as in the knee and elbow. A ball-and-socket joint allows movement in many directions and rotation, as in the shoulder and hip.
Start the lesson quiz on Study with Ghada: 10 questions from the Science Sixth Grade, Primary question bank. After each answer you'll see the right answer with an explanation, and any questions you miss move to “Review my mistakes” until you master them.
Yes, completely free. They're built on the Science - Grade 6 - Semester 1 lessons in the same order as the book, and every question is reviewed and approved by a teacher before students see it.
