Science Investigation(STEM 2021)

 Science Investigation

Task 1:

What causes Blood pressure?

1. If you run a lot you get  Blood pressure

2. MMHG

3. 60-80 MMHG

4. 120-80 MMHG= High Blood pressure.

Task 2.

Carefully read and understand this recording and planning guide so you are systematic in scientific thinking, experimenting, recording and interpreting. 

Follow logically through each section so you are thorough in your science investigation steps. 

Complete each section with details needed so you have carefully logged your project...and so an outsider can know and understand too.

1	My science investigation TOPIC:
2	My investigation question Which physical Heart Rate Result in High and low  Blood pressure.
3	Background research and knowledge I will explore as a backdrop to my investigation   What is Pulse rate/ Heart Beat? Pulse rate is your measure of your Blood pressure.
4	Aim of my investigation. To find out your questions.
5	My investigation steps Materials / resources / people: Ocean,Aleki and Texas Tennis ball, stop watch, smart watch. STEP 1 We get a Watch and stop watch. STEP 2 We Did different Physical Activity STEP 3 Got one Person to do the stop watch . STEP 4 We record our Heat rate.   STEP X Wrote it all down on a document.
6	My possible recording method Data collection table:  Name of the Activity Length of Activity Beat counted in 30 second Heart Rate mmHg Sitting 30 seconds 55mmHg Jogging on Spot 30 seconds 111mmHg Throwing and Catching ball 30 seconds 82mmHg Stretching 30 seconds 84mmHg Star Jumps 30 seconds 109mmHg Running as fast as possible on spot 30 seconds 80mmHg     Photos and Videos:
7	Result:  1.The Lowest Heart Rate Was:Sitting down 2:The Highest Heart Rate was:Jogging on the spot. 3:What you think this might be: it saws our heart beat.

Richard & Texas SCIENCE PROJECT DETAILED PLANNING

 

Carefully read and understand this recording and planning guide so you are systematic in scientific thinking, experimenting, recording and interpreting. 

Follow logically through each section so you are thorough in your science investigation steps. 

Complete each section with details needed so you have carefully log your project...and so an outsider can know and understand too.

1	My science investigation TOPIC   Can your tongue in the blnd test still know the test? Does everyone have the same taste buds? Is there any role for your eyes and tasting?
2	My investigation question Can your tongue in the blnd test still know the test? Does everyone have the same taste buds? Is there any role for your eyes and tasting?
3	Background research and knowledge I will explore as a backdrop to my investigation There are 4 different Kind of taste buds   Sweet: Sucrose Taste: Compound Sour: Citric acid Bitter: Caffeine Our sense of sight tells us about the shape of food, about its colour, its size and its texture.
4	Aim of my investigation
5	My investigation steps Materials / resources / people: STEP 1 We got into a Group of 6 STEP 2 Got a plastic spoon STEP 3 We got a lot of solution  STEP 4 Then Texas did one drop. STEP X Then we taste if it was Sweet Bitter salt Sour.
6	My possible recording method Data collection table Photos and videos
7	Sharing my investigation   After my investigation i found it, everyone have different taste buds-Sour Salty Sweet Bitter  Result Here. 1.Can your tongue in the blnd test still know the test? A:Yes it can case you still have your taste buds     2.Does everyone have the same taste buds? A:No They Don’t have the same taste buds.   3.Is there any role for your eyes and tasting? A:You need it to see the texture of the food and the shape.

Reflection For The Week.

 Reflection For The Week.

This 1st week of Term 3 was fun Monday it was just a normal day Tuesday we were introduce to our new relief Teacher Mrs Allan,Room 1 is So Welcome to have Mrs Allan,in our class,Wednesday,went Tech for the first week of Term 3,played Basketball with Friends,had fun.Then on Thursday We did Ki-O-Rahi Played on the playground and had fun,Now Today we Had assembly and going to have a wonderful weekend and Day.

Topic 8 (Acids and Bases)

 Topic 8

Task 1:

• What is pH?(potential of hydrogen)

• How do you measure pH?(Ph Meter)

• What is the scale pH is measured on?(Ph Scale)

• What pH level does water have? Is water acidic, basic, or neutral?(7)

• What is the most acidic pH level?(???)

• What is the most basic pH level?(14)

Acids and Bases.

• Ph- to measure acid and bases of solution

• Acid- Batteries, stomach acid,Vinegar,Medicines,

• Bases-Soap,detergent.

Streaky,slippery,bubbles, 

• Hydrogen ion

• Hydroxide ion

• Ph Scale 

• Nothing higher that 14

• Gastric Acid

• Citric Acid

• Batteries

• Lemon

• ToothPause

• Orange

Aim or Purpose: Test the pH levels in different household products.

Equipments

• Well plate

• litmus paper

• pH chart/table(1to14)

• Dropper

• Dropper

Products:

• Baking soda

• Distilled water

• Window cleaner

• Toilet bowl cleaner

• Lemon Juice

• Milk

• Orange Juice

• Apple Juice

• Vinegar

• Detergent

• Tea/Coffee

Substance	Acid/Base	Colour changes from?	Result.
Detergent	Based	Both colour stayed the same.	❌
Vinegar	acid	Different Colour	✔️
Lemon J	acid	Different Colour	✔
Apple J	Acid	Different Colour	✔️
Orange J	Acid	Different Colour	✔️
Window	Base	Both colour stayed the same.	❌
Toilet C	Acid	Different Colour	✔️
Mik	Based	Both colour stayed the same.	❌
Tea	Acid	Different Colour	❌
B C	Acid	Different Colour	✔️
Distilled water	b	Both colour stayed the same.

Red Litmus=Acid   

Blue Litmus=Base

Method

1. First of all, Using the marker, label each item you will be testing.

2. Measure about 4 or 5 drops of each item into the well plate and mark it for that item.

3. Take 10 different strips of litmus paper, so that you can test at least nine substances.

4. Take one small piece of red and blue litmus paper. Dip it into one of the substances to be tested. 

5. Repeat it with all other household substances.

6. Record all observations in a suitable table. Then dispose of the pieces of litmus paper in the waste bin.

7. Don’t forget to use a new test strip for each item. Discard the used strips.