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Digestion and Nutrition Name: _______________________________ 1 Complete the first two columns of the K-W-L chart below. Complete the third column at the end of the unit. What You Know About the Human Body What You Would Like to Know About the Human Body What You Learned About the Human Body Brainstorm in small groups how your body has changed from birth to present by completing the table below. Change Began to Change taller birth baby teeth 6 months old 2 Draw a cell and label its corresponding parts: nucleus, cytoplasm and cell membrane. Define and explain the function of the following: a. nucleus: _____________________________________________________ _____________________________________________________ b. cytoplasm: _____________________________________________________ _____________________________________________________ c. cell membrane: _____________________________________________________ _____________________________________________________ 3 Cells work together by organizing themselves into bigger and bigger body parts. Explain this organization. _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ 4 Food Menu Breakfast Lunch Dinner Snack (morning) Snack (afternoon) Snack (evening) Classify the above foods. Grain Products Fruits and Vegs. Milk Products Meat and Alter. Total: Total: Total: Total: 5 Complete a web below to show different ways that you can live a healthy lifestyle? Include aspects of mental, social, spiritual, and physical health. 6 Refer to page 16 and 19 of your science text book to complete the activity below. 1. Use these words to complete the passage; Saliva Esophagus Digestion Mouth Stomach Gastric juices Food provides the body with the energy it requires. The nutrients the body needs comes from the food and drink we consume. This process of change is known as _________________________. When food enters the ______________________, fluids start changing the starches into sugar that the body can digest with the help of the ______________________. The food continues down the ____________________. Muscular movements squeeze and push it down to the _______________________. Once in the stomach, some food remains here for awhile. Other food particles are further broken down by _____________________. These juices are made up of water and chemicals that soften the food and kill the bacteria. This process takes approximately 3 to 4 hours to occur. 7 2. Use these words to label the diagram. esophagus, liver, mouth, pancreas, stomach, large intestine, small intestine, anus, colon 8 Exploration: Investigate What Happens in your Mouth and Stomach. 1. Chew a cracker just a little and then hold it in your mouth for two or three minutes without swallowing. What happens to the cracker? What happens to the taste? 2. Break several crackers into bite-size pieces, put them into the cups and stir. Add water at a time until it barely covers the crackers. What happens to the crackers as you stir? _____________________________________________________ _____________________________________________________ 3. Put the cracker and water mixture in the plastic bag. Gently remove the air from the bag and close it tightly. Squeeze it between your fingers. Can you still feel pieces of crackers? What could you do to make the mixture more soupy? _____________________________________________________ _____________________________________________________ Interpret Your Results 1. How did the cracker taste by the time you swallowed it? What happened to cause the change? How did the texture of the cracker change? _____________________________________________________ _____________________________________________________ 9 2. How was stirring and adding water to the crackers in the cup like what happens in your mouth? _____________________________________________________ _____________________________________________________ 3. What happened to the cracker and water mixture in the plastic bag? How is that similar to what happens inside your stomach? _____________________________________________________ _____________________________________________________ How Long is the Digestive System? Use four different colours of yarn to represent the length of the digestive system. Each colour should represent an organ of the system. Measure and cut the length of each organ below: Esophagus 25cm Stomach 20 cm Small Intestine 700 cm Large Intestine 150 cm Different thicknesses of yarn should be used for large and small intestines. 1. Tie each piece of yarn together. What is the total length of the digestive system? Show your workings. _____________________________________________________ _____________________________________________________ _____________________________________________________ _____________________________________________________ 10 2. Why is the small intestine so much longer than the rest? _____________________________________________________ _____________________________________________________ _____________________________________________________ 3. The small intestine and large intestine have similar names. How are they alike, (besides their name) and how are they different? _____________________________________________________ _____________________________________________________ _____________________________________________________ 11 Grade 5 Science Study Guide Body Works: Nutrition and Digestion Students should be able to: 1. cells Define the following terms tissues organs systems diabetes 2. Draw a picture of a body cell, label the nucleus, cytoplasm and cell membrane and explain the function of each. 3. List 5 nutrients. List 3 ways the body uses the energy it gets from food. 4. List the 4 food groups and give 3 examples from each. 5. Label a diagram of the digestive system and briefly explain the structure and function of each part. Label with the following parts: mouth, esophagus, stomach, small intestine, large intestine, rectum, anus, liver, gallbladder and pancreas. 6. List 3 ways a person with diabetes can stay healthy. 12