1st Q Science Reviewer-admu-gr4

1st Q- SCIENCE I.

WHAT IS SCIENCE

DIRECTIONS: Write T if the sentence is true and F if it is false. ________ 1. ________ 2. ________ 3. ________ 4. ________ 5. II.

Science is asking questions. Science is finding an answer. Science is inventing new things. Science is exploring the unknown. Science is guessing the answer.

THE SCIENTIFIC METHOD

A. DIRECTIONS: Identify the step of the scientific method in the following situations. Write the letter only. A. B. C. D. E. F.

Identifying the problem Formulating hypothesis Conducting the experiment Analyzing results Making conclusion Applying knowledge learned

_______ 1.

After two weeks, Adam noted the following: Pot A Pot B Pot C Pot D

________ 2. sunshine.

5 flowers 9 flowers 0 flowers 0 flowers

Adam thinks that his plants do not get enough

_________ 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.

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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. ______ 2. ______ 3. ______ 4. ______ 5.

color of battery length of time the battery will last brand of battery size of battery 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.)

3 ___T___

1.

A contains the liquid that softens food and makes it easy 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 the peristalsis.

___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 B C D

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

A. small intestines B. large intestines

___A___

1.

digests food

___A___

2.

absorbs nutrients from food

___A___

3.

has villi

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___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____

__A____

1.

Which one causes most of the changes in digestion?

A. B. C. D.

stomach liver enzyme large intestine

2.

Where does digestion take place?

mouth esophagus stomach large intestine A. B. C. D. __B____

__D____

__C____

I and III II and III I, III and IV All of the above

3.

What if found in the lining of the small intestines?

A. B. C. D.

enzymes villi blood vessels all of the above

4.

The __________ in the mouth mixes with food and makes it easier to swallow.

A. B. C. D.

water enzymes peristalsis saliva

5.

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

5 A. B. C. D.

constipation circulation digestion 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 are symptoms of this

______

3.

diabetes

c.

most common illness of the stomach

______

4.

dyspepsia

d.

commonly caused by a viral infection of the liver

______

5.

constipation

e.

ailment of the pancreas; characterized by having excess sugar in blood and urine

______

6.

hepatitis

f.

can cause dehydration

_______

7.

jaundice

g.

block the passage of bile from the gall bladder to the intestines; formed from bile salts, cholesterol and calcium carbonate

_______

8.

diarrhea

h.

can be cured by drinking plenty of water and eating fruits and green vegetables

DIRECTIONS. Write the letter of the best answer. _______ 1. Gallstones can cause symptoms like: I. II. III.

Abdominal pain Nausea and vomiting Abdominal fullness

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a. I and II only b. II and III only

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

______ 2. What should you AVOID if you are constipated? I. II. III.

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

a. I only b. II only

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

_______ 3. What are the factors that cause ULCERS? I. II. III.

Not eating regularly or not eating at all Taking or drinking pain relievers Excessive intake of caffeine

a. I and II only b. I and III only

c. II 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. b. 2.

uremia urinary tract infection

c. kidney stones d. asthma

These are formed when salts crystallize in the kidney tissue. a. uremia b. urinary tract infection

c. kidney stones 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 b. urinary tract infection

c. kidney stones d. asthma

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

skin disorders emphysema

c. tuberculosis d. asthma

6. Which of the following is not a mode of removing kidney stones? a. b. 7.

c. lithotripsy d. dialysis

UTI can be treated by ____________. a. b.

8.

surgery antibiotics

c. lithotripsy d. dialysis

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

D.

surgery large fluid intake

uremia urinary tract infection

c. skin disease d. kidney stones

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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