Friday, 18 May 2018

Marshmallow Shooters

Marshmallow Shooter
QUESTION: What factors affect the force of a marshmallow shooter?


MATERIALS
  • paper cup
  • meter stick
  • Scissors
  • Balloon    

  • metric ruler
  • transparent tape
  • mini marshmallow


  • PROCEDURE:
    1. Tie a knot in the end of the balloon, then snip off about 2 cm from the top of the balloon.
    2. Cut the bottom out of the paper cup.
    3. Stretch the balloon over the end of the cut off paper cup so that the knot is in
    4. the center of the cup.
    5. Tape the stretched balloon securely onto the paper cup so that when you
    6. pull on the knot of the balloon it stretches with your pull but does not come off the paper cup.
    7. Place one mini marshmallow inside the cup so that it rests on the
    8. center of the balloon covering the end of the cup.
    9. Pointing the opening of the cup away from you and others,
    10. pull the knot back and release it so that it snaps and shoots the mini
    11. marshmallow out of the cup.
    12. Repeat Step 6 but pull the knot a distance of 2 cm and release it.
    13. Record the distance the marshmallow lands from the edge of the cup.
    14. Repeat Step 7 two more times.
    15. Repeat Steps 7 and 8, but this time pull the knot 4 cm and release it.
    16. Repeat Steps 7 and 8, using two marshmallows.
    17. Repeat Steps 7 and 8, using four marshmallows instead of two.




    DATA:
    Variable
    Trial 1 (distance cm)
    Trial 2
    (distance cm)
    Trial 3
    (distance cm)
    Trial 4
    (distance cm)
    2 cm Pull 1
    Marshmallow
    63 cm
    93 cm
    86 cm
    42 cm
    4 cm Pull 1
    Marshmallow
    1 m 29 cm
    2 m 18 cm
    1 m 99 cm
    2 m 21 cm
    2 cm Pull 2
    Marshmallows
    1. 53
    2. 1m 12 cm
    1. 28 cm
    2. 57 cm
    1. 25 cm
    2. 30 cm
    1. 33 cm
    2. 42 cm
    2 cm Pull 4
    Marshmallows
    1. 12 cm
    2. 25.5 cm
    3. 31 cm
    4. 69.5 cm
    1. 20 cm
    2. 27 cm
    3. 27.3 cm
    4. 47 cm
    1. 17.2 cm
    2. 21 cm
    3. 23 cm
    4. 34.1 cm
    1. 16 cm
    2. 35 cm
    3. 52.3 cm
    4. 76.8 cm

    QUESTIONS:


    1. What force causes the marshmallow to shoot out of the cup?
    There is no name for a pulling force. That was the force used in this experiment.
    1. How does the distance the marshmallow flew when the balloon was pulled back
    2. 2 cm compare with how far it flew when the balloon was pulled back 4 cm? Why?
    Because the pressure of the pulled back balloon was greater and harder.
    1. Why do the two marshmallows fly further than the 4 marshmallows?
    Because 2 marshmallows are lighter and easier to control then 4 marshmallows.


    When you put in the most force to launch something, it will go farther then if you put
    very little force towards it.






    Copyright © Daniel J. Wyrick 2010. All Rights Reserved. freesciencelab.com

    Monday, 14 May 2018

    Fresh Fractions

                Fresh Fractions
    We are learning to find fractions of a whole and of a set.
    We are learning to add and subtract fractions




    What is 1/4 of 4?  1


    What is ¼ of 8?    2


    What is ⅓ of 6?    2


    What is 2/6 of 12?  4


    What is ¼ of 20?   5


    What is 1/10 of 20 ?  2


    What is ⅔ of 30?  20


    What is ⅕ of 25?   5

    5 of my friends are sharing a large chocolate bar. What fraction of the bar
    would they get each?   ⅕ each


    4 of us are sharing a chocolate cake. What do we cut it up into?
    Quarters
    12 of us are sharing a chocolate cake. What do we cut it up into?
    Twelths
    I have 5/16 of a cake at a birthday party. I keep going back for more
    and eat another  6/16 of a cake. What fraction of a cake have I eaten
    altogether?
    11/16
    I have 10/21 of a cake left over from the party. Then I give 6/21 of a
    cake to my sisters. What fraction of a cake do I have left over?
    4/21


    ⅓ + ⅔ = 1


    ¾ + ¾ = 1 2/4


    ⅕ + ⅗ = 4/5


    ⅘ - ⅗ = 1/5


    5/10 - 1/10 = 4/10


    55/60 - 40/60 = 15/60


    12/20 + 17/20 = 5/20

    Have a go at these!


    ½ + 3/4 =  1 1/4


    2/6 + ⅔ = 1


    ⅕ + 2/10 = ⅖


    2/6 + 4/12 = ⅔


    2/5 + 3/15 = ⅗


    1/9 + 1/18 = ⅙

    2/9 + 4/18 = 4/9

    Monday, 7 May 2018

    Current Events - Kiwi Kids News Article



    This presentation was an independent activity for those students who had finished,
    other previous tasks. This is about current events that happen around the world, that we
    needed to find out about. My article is from kiwikids news. Here is a link to the article
    I have read. White Kiwi misses birthday due to an infection...

    Delicious Division - Document

    Delicious Division
    We are learning to solve division equations using our knowledge of
    multiplication.


    Multiplication practice:


    56 ➗ 8 = 7          72 ➗ 9 = 8        44 ➗ 11 = 4
    45 ➗ 9 =  5 64 ➗ 8 =     8 56 ➗ 7 = 8
    35 ➗ 5 =   7 144 ➗ 12 =  12 27 ➗ 3 = 9


    Maselino has 50 chocolates. He would like to share them between 5 friends.
    How many chocolates will they get each?
    1. 50 / 5 = 10
    36 cookies are shared between 6 friends. How many cookies do they get each?
    1. 36 / 6 = 6
    Justus has 70 chocolates. He would like to share them between 5 friends.
    How many chocolates will they get each?
    1. 70 / 5 = 14
    Cooking club have made 48 cookies that will be shared between 6 students.
    How many cookies will each student receive?
    1. 48 / 6 = 8
    Naomi has 80 lollies. She would like to make 20 lolly leis.
    How many lollies can you use to make each lei?
    1. 80 / 20 = 4
    Sheales has made 72 mini pineapple pies. She is sharing them between 12 friends.
    How many pies will each friend receive?
    1. 72 / 12 = 6
    Tamati has 48 fidget spinners to share between 12 friends.
    How many will they receive each?
    1. 48 / 12 = 4
    Mrs Vaafusuaga has ordered 81 tennis balls. They are in cans of 3 balls.
    How many cans should there be?
    1. 81 / 3 = 27

    Delicious Division - Presentation



    WALT: Add and subtract with decimals

    This is my delicious division presentation and task.


    Friday, 4 May 2018

    My Female Role Model - #LikeAGirl



    This is my female role model. Her name is Oprah Winfrey. She is an amazing person,
    I love her for who she is. Read the next slide to find out more about her.

    Thursday, 3 May 2018

    Issue of Pollution


    This is a poster that a friend and I created, last term for our inquiry task. It has 4 main points to the issue that Nz has around pollution. Our task was to create something that explains the impact of pollution and what the issue really is.