Year 7 Science · Unit 1 · Lesson 10
Foundation Worksheet
Learning Goals
Fill the gap
Choose the correct word from the word bank to complete each sentence in the passage below.
Your body is built in levels, from the smallest to the largest. A single cell on its own cannot do very much. When many similar cells join together and share one job, they form a . The wall of the heart, for example, is made of tissue — millions of tightly packed cells that all contract together. When several different tissues combine to do one specific job, they form an . The is a perfect example: it contains cardiac muscle tissue, nerve tissue, and connective tissue all working as one structure. An organ never works in isolation. The heart connects to — the tubes that carry blood to every corner of the body. Together, the heart and blood vessels form the , whose main job is to pump blood around the body. All the organ systems of a living thing combine to make a complete .
Match each term to its definition
Draw a line connecting each term on the left to its correct definition on the right. Or write the matching letter next to each term.
| Term | Your answer | Definition |
|---|---|---|
| Tissue | A. A group of organs working together to do one big job — for example, the heart and blood vessels. | |
| Organ | B. The type of tissue found in the wall of the heart; its cells contract rhythmically to pump blood. | |
| Organ system | C. A group of similar cells working together to do one job. | |
| Circulatory system | D. A structure made of several tissues working together — examples include the heart, stomach, and leaf. | |
| Cardiac muscle | E. The organ system responsible for carrying oxygen and nutrients around the body via the heart and blood vessels. | |
| Nervous system | F. The organ system that carries signals and controls thought and movement; includes the brain, spinal cord and neurons. |
1. List the five levels of biological organisation in order from smallest to largest.
2. Name two different types of tissue found in the heart, and describe the job each one does.
Wrap Up
In one sentence, what was the main idea of this lesson?