Trimester 1 Review

1. Trimester 1 Review Start a New Page Enter it in your TOC

2. Topics: Atoms, Molecules, Elements, Compounds (AMEC) Characteristics of Life (all 6!) Plant vs. Animal Cells Photosynthesis & Respiration Specialized Cells Levels of Organization

3. 1. Draw this grid in your Science Notebook. (about ½ page)2. Draw 2-3 in each box (don’t worry if they could be in more than one box) Atom Element Molecule Compound

4. Place the magnets in the correct place. Atom Element Molecule Compound

5. Definitions: Mr. Hill’s favorites! Atom= ONE (Alone) Molecule= MANY (More than one) Element= SAME (Equal) Compound= DIFFERENT

6. Science Definitions: Atom= A basic unit of matter. Molecule = A group of two or more atoms. (Note: can be same OR different types!) Element = One or more atoms of the same type. Compound = A group of two or more different atoms.

7. Examples (Graphic Organizer) Molecules Elements Compounds Made of atoms

8. It’s Alive!!!...or is it? All living things must have ALL SIX of the characteristics that we will learn. If even one is missing it CANNOT be considered alive!

9. MADE OF CELLS 1. All living things are made of one or more CELLS. Cells are the smallest unit that can carry on all of the activities of life. Some organisms are single-celled and others contain trillions of cells. (We will learn even more about very soon!)

10. RESPOND 2. All living things sense and respond to change. A change that affects how an organism acts is called a stimulus. Stimuli (plural for stimulus) can be things like touch, light, sounds, or hunger – anything that causes a reaction.

11. OFFSPRING 3. All living things reproduce. Every type of organism has offspring (Yes, that’s right, even plants have “babies”). Without offspring the species would become extinct.

12. DNA 4. All living things contain DNA. DNA stands for Deoxyribonucleic acid. DNA is found inside every cell! DNA carries instructions for the organism’s traits. (We will learn much more about this during our genetics unit!)

13. USE ENERGY 5. All living things need and use energy Energy is the “gas” for life. Every cell needs energy to continue living. Most organisms get their energy from food. Question: Where do plants get their energy?

14. GROW 6. All living things grow and change All organisms grow at some point in their life. - Sometimes they simply get larger. - Other times they change (for example, a tadpole turns into a frog).

15. CHARACTERISTICS OF LIFE(requirements for something to be considered living) • Made of Cells • Sense and Respond to Change • Reproduce • Contain DNA (code of life – gives traits) • Need and Use Energy • Grow and Change

16. Living vs. Non-Living Examples

17. Plant Cells or Animal Cells?Put a “P” by Plant Cell descriptionsPut an “A” by Animal Cell descriptions ____ Random ____ Recognizable Shape ____ “Neat” ____ “Messy” ____ Rows & Columns ____ No Pattern ____ Organized ____ “Blob”Shape ____ Stacked ____ Odd Shape

18. Answers“P” = Plant Cells“A” = Animal Cells __A__ Random __P__ Recognizable Shape __P__ “Neat” __A__ “Messy” __P__ Rows & Columns __A__ No Pattern __P__ Organized __A__ “Blob”Shape __P__ Stacked __A__ Odd Shape

19. Plant Cell Parts • What three cell parts that can be found ONLY in plant Cells? • What do they do (what is their job)?

20. Plant Cells

21. Complete the Chart

22. Answers

23. How do you know? (What is there?) (What is not there?) Plant or Animal Cells?

24. Plant Cells or Animal CellsHow do you know?

25. P-R “Quick Check” Photosynthesis Cell Part: Respiration Cell Part:

26. Chemical Equation for Photosynthesis carbon dioxide+ water + glucose + oxygen • Photo= light • Synthesis= combining parts to make something • Photosynthesis = combining water and carbon dioxide (with the help of the sun) to make sugar! REACTANTS PRODUCTS

27. Chemical Equation for Respiration oxygen+ glucose carbon dioxide + water + ENERGY (ATP) Respiration = the process of breaking down glucose (in the presence of oxygen) to make ATP ENERGY! REACTANTS PRODUCTS

28. Some Examples of Specialized Cells • What kind of cell is it? • Red blood cell • What is its function/job? • Carry Oxygen (and CO2) around the body • Why do you think it looks the way it does? • Round = doesn’t get stuck!

29. Some Examples of Specialized Cells • What kind of cell is it? Nerve cell • What is its function/job? Carry signals (messages) around the body • Why do you think it looks the way it does? Long= signals go far away Branched = signals go to many cells at once

30. Some Examples of Specialized Cells • What kind of cells are these? • Skin cells • What is its function/job? • Protects our insides • Why do you think it looks the way it does? • Flat & Layered = keeps outside stuff from getting inside!

31. Your Task: • Put the following words in the correct order: • Organs • Tissues • Organism • Cells • Organ systems

32. A group of cells working together A group of tissues working together A group of organs working together A living thing (group of organ systems working together) The smallest basic unit of life. Organ Systems Cells Tissues Organs Organism Heart & Vessels Heart Human

33. Vocabulary Organism: a living thing Organism is simply a science word we use to describe a living thing. An organism could be a plant, animal or bacteria—ANYTHING that is a living thing.

34. Additional Study Questions What is the main purpose of photosynthesis? What type of cells do photosynthesis? Where in the cell does photosynthesis happen? What is the main purpose of respiration? What type of cells do respiration? Where in the cell does respiration take place? **What is the relationship between photosynthesis and respiration? (Think about the P-R Cycle.) Why are cells specialized? (Why don’t all cells look the same?) Name a type of specialized cell and explain what it does. Put the following terms in order from simple to complex: Tissues, Organism, Organ Systems, Cells, Organs

35. Review Summary:Copy the table below.Answer each of the questions using your notes and textbooks.