1st Q- SCIENCE

I. WHAT IS SCIENCE

DIRECTIONS: Write T if the sentence is true and F if it is false.

________ 1. Science is asking questions.________ 2. Science is finding an answer.________ 3. Science is inventing new things.________ 4. Science is exploring the unknown.________ 5. Science is guessing the answer.

II. THE SCIENTIFIC METHOD

A. DIRECTIONS: Identify the step of the scientific method in the following situations. Write the letter only.

A. Identifying the problemB. Formulating hypothesisC. Conducting the experimentD. Analyzing resultsE. Making conclusionF. Applying knowledge learned

_______ 1. After two weeks, Adam noted the following:

Pot A 5 flowersPot B 9 flowersPot C 0 flowersPot D 0 flowers

________ 2. Adam thinks that his plants do not get enough sunshine.

_________ 3. Based on his data, Adam was now sure that his plants’ original position did not provide enough sunshine.

_________ 4. Adam has four pots of sampaguita plants. He transfers two pots (Pot A and Pot B) to another location, which he thinks gets more sunshine during the day. He did not move the other two pots (Pot C and Pot D). He gave all plants the same amount of water and fertilizer.

__________ 5. Adam moved Pots C and D beside Pots A and B.

__________ 6. Adam wanted to know why his sampaguita plants do not bear flowers. He waters his plants and fertilizes them regularly.

B. CLASSIFYING VARIABLES. DIRECTIONS: Write A for independent variable, B for dependent variable and C for controlled variable.

Situation: Ben is testing two different brands of batteries to see which brand lasts longer.

______ 1. color of battery______ 2. length of time the battery will last______ 3. brand of battery______ 4. size of battery______ 5. kind of toy the battery is used on

DIGESTIVE SYSTEM

A. PARTS AND FUNCTIONS/ DIGESTION PROCESS

DIRECTIONS. Look at the illustration below. Write the name of the organs with letters A, C, D, E, and F A - ___________

C - ___________D - ___________E - ___________F - ___________

DIRECTIONS: Write T if the sentence is true and F if it is not.

(For #1-8, look at the illustration above.)

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___T___ 1. A contains the liquid that softens food and makes iteasy to swallow.

___F___ 2. E sends nutrients to the rest of the body.

___T___ 3. Most digestion occurs in C.

___T___ 4. E stores undigested food.

___T___ 5. B moves the food down the stomach through theperistalsis.

___F___ 6. Digestive enzymes are found in A only.

___T___ 7. Peristalsis happens in B and C.

___F___ 8. Digestion happens in A to E.

___T___ 9. Chemicals called enzymes cause most of the changes of digestion.

___T___ 10. Muscular contraction in the esophagus is called peristalsis.

___F___ 11. The whole lining of the small intestine is covered by enzymes.

___T___ 12. The undigested parts of food move from the small intestine to the large intestine.

___T___ 13. Saliva breaks starches in food to sugars.

___T___ 14. Blood carries the nutrients from the small intestines to the rest of the body.

___F___ 15. The rectum is the final passage way of waste.

DIRECTIONS: Write

A if the phrase describes A only,B if the phrase describes B only,C if the phrase describes A and B,D if the phrase describes neither.

___A___ 1. digests food

___A___ 2. absorbs nutrients from food

___A___ 3. has villi

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A. small intestinesB. large intestines

___D___ 4. has peristalsis

__B____ 5. where waste is stored

__D____ 6. where food is cut into little pieces

__A____ 7. secretes enzymes that break down food

__D____ 8. where digestion starts

__B____ 9. absorbs water from undigested food

__C____ 10. part of the digestive system

Multiple Choice: Write the letter of the correct answer:

__C____ 1. Which one causes most of the changes in digestion?

A. stomachB. liverC. enzymeD. large intestine

__A____ 2. Where does digestion take place?

A. I and IIIB. II and IIIC. I, III and IVD. All of the above

__B____ 3. What if found in the lining of the small intestines?

A. enzymesB. villiC. blood vesselsD. all of the above

__D____ 4. The __________ in the mouth mixes with food and makes iteasier to swallow.

A. waterB. enzymesC. peristalsisD. saliva

__C____ 5. Changing of food into a form that the body cells can use is called ___________.

mouthesophagusstomachlarge intestine

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A. constipationB. circulationC. digestionD. respiration

B. COMMON AILMENTS

DIRECTIONS: Match column A with column B. Write the correct answer on the blank.

______ 1. ulcer a. also known as indigestion;caused by rapid and excessive eating and drinking

______ 2. gallstones b. yellow appearance of skin,vomiting and itchiness aresymptoms of this

______ 3. diabetes c. most common illness of thestomach

______ 4. dyspepsia d. commonly caused by aviral infection of the liver

______ 5. constipation e. ailment of the pancreas;characterized by having excess sugar in blood andurine

______ 6. hepatitis f. can cause dehydration

_______ 7. jaundice g. block the passage of bilefrom the gall bladder to theintestines; formed from bilesalts, cholesterol and calcium carbonate

_______ 8. diarrhea h. can be cured by drinkingplenty of water and eatingfruits and green vegetables

DIRECTIONS. Write the letter of the best answer.

_______ 1. Gallstones can cause symptoms like:

I. Abdominal painII. Nausea and vomitingIII. Abdominal fullness

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a. I and II only c. I, II and III b. II and III only d. none of the above

______ 2. What should you AVOID if you are constipated?

I. Eat fatty and greasy foods like hamburgers and fries.II. Drink more water everyday.III. Do not eat at all.

a. I only c. I and II onlyb. II only d. all of the above

_______ 3. What are the factors that cause ULCERS?

I. Not eating regularly or not eating at allII. Taking or drinking pain relieversIII. Excessive intake of caffeine

a. I and II only c. II and III onlyb. I and III only d. all of the above

C. CARE FOR THE DIGESTIVE SYSTEM

DIRECTIONS. Name two ways of keeping your digestive system healthy.

1. ____________________________________________________

_______________________________________________________

2. ____________________________________________________

_______________________________________________________

DIRECTIONS. Fill in the table. Name the nutrients that your body needs to work well, an example and the nutrients’ contribution to your body. The first nutrient is done for you.

Nutrient Example Contribution

Proteins Meat Build new cells for healthy muscles and skin

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IV. THE EXCRETORY SYSTEM

A. PARTS AND FUNCTIONS OF THE URINARY SYSTEM

DIRECTIONS: Write the letter of the part that is being described.

________1. kidney

________2. urethra

________3. bladder

________4. ureter

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________5. bag-like part

________6. filters out cell wastes from blood

________7. where urine is stored

________8. bean-shaped organ found on each side of body

________9. tube where urine is released from the body

________10. narrow tube that connects the bladder and kidneys

B. OTHER EXCRETORY ORGANS

DIRECTIONS: Answer the following questions in 1-2 sentences.

1. How do your lungs function as excretory organs?

_______________________________________________________

_______________________________________________________

2. How does the skin function as an excretory organ?

_______________________________________________________

_______________________________________________________

C. COMMON AILMENTS

DIRECTIONS. Circle the letter of the correct answer.

1. When the chief excretory organ fails to function in filtering and excreting wastes from the blood, ____________ develops.

a. uremia c. kidney stonesb. urinary tract infection d. asthma

2. These are formed when salts crystallize in the kidney tissue.

a. uremia c. kidney stonesb. urinary tract infection d. asthma

3. This is performed on patients with uremia, to remove wastes from the blood.

a. prescribe medicines c. lithotripsy

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b. surgery d. dialysis

4. Symptoms of this ailment include painful urination and the presence of blood or pus in the urine.

a. uremia c. kidney stonesb. urinary tract infection d. asthma

5. Which of the following do not affect the excretion of gaseous waste from the body?

a. skin disorders c. tuberculosisb. emphysema d. asthma

6. Which of the following is not a mode of removing kidney stones?

a. surgery c. lithotripsyb. large fluid intake d. dialysis

7. UTI can be treated by ____________.

a. surgery c. lithotripsyb. antibiotics d. dialysis

8. Chills, fever, spasms and acute pain are symptoms of this.

a. uremia c. skin diseaseb. urinary tract infection d. kidney stones

D. CARE FOR THE EXCRETORY SYSTEM

DIRECTIONS: Write √ if the sentence describes a proper way of caring for your excretory system and X if it does not.

_______ 1. Urinate when you feel like it.

_______ 2. When playing sports, wear gear to protect your organs.

_______ 3. Eat lots of salty foods.

_______ 4. Drink plenty of fluids.

_______ 5. Take baths or showers regularly.

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REVIEW YOUR ANSWERS!

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