# Yr6 16/06-Science (Straight or wavy?)

Good morning Year Six, I hope you are all well and your lights are shining bright! Last week we looked at key vocabulary and went on a light hunt.

Today you will conduct an experiment at home (or school) using items you all have access to. The purpose of our experiment is to see in what direction light travels (hence the title straight or wavy?)

Aim:
To discover how light travels and learn about the physics behind light.

Prediction (Hypothesis):
I predict light travels in……. direction.

Materials:
*3 pieces of paper/card
*Blu-tac/clay/play dough/tape
*Torch/ mobile torch
*Ruler/Scissors

Method:
1. For each piece of card, use a ruler to draw lines connecting opposite corners of the card (creating a large X)
2. At the intersection of the two lines, cut a hole in the center of the cards.
3. For each card, use a small piece of blu-tac/ and place the card into the clay to create a “stand” for the card. Place the cards so that they stand vertically and at an equal distance from each other. See Diagram.
5. Place the flashlight at one end of the row of index cards and turn off the light in the room.
6. Arrange the cards so that light can be seen through all the holes.
7. Observe and record your observations.

Conclusion:
1. How can light be seen through all the cards?
2. What would happen if the cards were not aligned?
3. What does the experiment prove about the path light travels?
4. What would happen if the holes were smaller?

Please write your plan out and ensure the conclusion questions are answered. Feel free to send photos of yourself conducting the experiment etc.

1. #### Umarr S.

Prediction (Hypothesis):
My hypothesis is that light travels in a straight light and not a wavy one.
Conclusion:
1. How can light be seen through all the cards?
Light can be seen through all the cards because light travels in a straight line. As there is a hole in each of the cards, the light will shine through the hole in the cards.
2. What would happen if the cards were not aligned?
The light will not shine as brightly. As white paper was used, the light would be able to shine through it vaguely. However this would not be very efficient.
3. What does the experiment prove about the path light travels?
The experiment proves that light travels in a straight line.
4. What would happen if the holes were smaller?
If the holes were smaller, the amount of light that would shine through would be less.

2. #### Leeda D.

Prediction (hypothesis):
I predict that the light travels in a straight line.
Conclusion: How can light be seen through all the cards?:
Well, there is a hole in each of the cards, and if the light is straight it shines through.
What would happen if the cards were not aligned?:
Because the paper was white, the light would shine through vaguely, but not as bright.
What does the experiment prove about the path the light travels?:
The experiment proves that light travels in a straight line.👍
What would happen if the holes were smaller?:
If the holes in the cards were smaller the light would shine through less.

• #### Mrs Jones

Have you carried out the experiment? What would your prediction be it you used a mirror ?

3. #### Zuzanna B.

I have sent you my work.

• #### Mrs Jones

Got it thanks Zuzanna 👍

4. #### Anya D.

Prediction (Hypothesis):
My hypothesis is that light travels in a straight light and not a wavy one.
Conclusion:
1. How can light be seen through all the cards?
Light can be seen through all the cards as light travels in a straight line. A s there is a hole in each of the cards, the light will shine through the hole in the cards.
2. What would happen if the cards were not aligned?
The light will not shine as brightly. As white paper was used, the light would be able to shine through it vaguely. However this would not be very efficient.
3. What does the experiment prove about the path light travels?
The experiment proves that light travels in a straight line.
4. What would happen if the holes were smaller?
If the holes were smaller, the amount of light that would shine through would be less.

• #### Mrs Hurt

When does light not travel in a straight line?

5. #### Humaira K.

Prediction (Hypothesis):
I predict light travels in a straight direction.
Conclusion:
1.) How can light be seen through all the cards?
Because light is a straight line so it can be seen through all the cards.
2.) What would happen if the cards were not aligned?
The light would not go through all the cards.
3.) What does the experiment prove about the path light travels?
Light travels in a straight line.
4.) What would happen if the holes were smaller?
The light won’t go through the holes if they were smaller.

• #### Miss Vega

What would happen if the holes were larger?

• #### Humaira K.

The light would go through and there will be more light.

6. #### Raumaan A.

Prediction:
I predict that the light will travel in a straight line and through all the card and glass. I believe this because the light will be aiming at the glass and it will travel through in a straight line depending on how the glass is placed.

Conclusion:
1. How can light be seen through all the cards?
The light will be shown if nothing is blocking it because light travels in a straight line so it will be shown on all cards and if it is not you can move the cards around in a direction where it hits all the card and is shown.
2. What would happen if the cards were not aligned?
If the cards were not aligned then the light will travel only on the direction the card is facing and of there is now card going on a straight line the light will end and just keep hitting the card.
3. What does the experiment prove about the path light travels?
This experiment proves that light will travel in a straight line depending on how the card is facing. It has also shown that light can go through small holes and still portray rays of light.
4. What would happen if the holes were smaller?
If the holes was smaller then the beam of light would be smaller and it would just stay smaller but if it was bigger then more light would be able to go through but of it was smaller less light would go through.

• #### Mrs Jones

Well done, good detailed answers. What do you predict would happen to the light beam if you placed a mirror at the end?

• #### Miss Vega

Will the light refract through the paper?

7. #### Jeremi J.

I prediction that the light will travel through all of the pieces of paper and will go in a straight line.
1. The light can go through all of them because light travels in a straight direction and if nothing is going to block it then it will get through.
2. If the cards were not aligned then the light will not be able to go past.

• #### Mrs Jones

Well done Jeremi good answer. What do you predict would happen to the light if you put a mirror at the end of the row of paper?

8. #### Zara H.

I will send you my video.

Thank you.

9. #### Jessica M.

Prediction:
I predict that light travels in a straight direction.

Conclusion:
How can light be se n through tall the cards?
If it’s a glass card then light would travel through the cards because it’s just like a mirror.
What would happen if the cards were aligned?
Then light would not travel through the card because the cards are not straight.

• #### Mrs Jones

Good work Jessica. Is glass the same as a mirror? What would happen to the light beam if you put a mirror in front of it?

10. #### Lieca N.

1.How can light be seen by cards?
Light can be seen by cards if its in straight line and the same height.
2.What would happen if the cards were not aligned?
The light wouldn’t be able to pass through
3. What does the experiment prove about the path light travels?
If its not the same it wouldn’t be able to pass throught the cards
4.What would happen if the holes were smaller?
Nothing will happen it would still pass throught but smaller amounts

• #### Mrs Jones

So in conclusion, how does light travel? in straight or in a wavy direction?

• #### Miss Vega

Why would the light not pass through if the circles were not aligned?

11. #### Mario G.

I predict that light travels in a straight line.
My prediction was right. Line does travel threw a straight line. I know this because I have done an experiment on it.

• #### Mrs Jones

Well done. What would happen to the light if one of the pieces of paper didn’t have a hole in it?

12. #### Shree Patel

I have done the experiment in school.

• #### Mrs Jones

Well done Shree. What did you learn?

13. #### Inaaya H.

I will send my work.

• #### Mrs Jones

Thank you, well done.

14. #### Amelia H.

1. How can light be seen through all the cards?
By outing them all straight and.
2. What would happen if the cards were not aligned?
The light wouldn’t come through because it wouldn’t travel straight.
3. What does the experiment prove about the the path light travels?
That they go straight.
4. What would happen if the holes were smaller?
The hole would travel differently

15. #### Elena B.

Predict:
I predict that light travels in straight direction.

Conclusion:
1.If the cards were not aligned then the light wouldn’t go through it because the circles are not in line.
2.If the wholes were smaller the light wouldn’t go through it.

16. #### Hamza Y.

I predict that light travels in wavy directions
Conclusion:light can go through cards a tiny bit if cards weren’t aligned light could go through cards.The experiment is put a hole in the middle and put light through light wouldn’t go through

17. #### Jack L.

Aim
To test and experiment with light to see if physics behind light
I predict the light will travel through straight I think this the light will be able to go strait
Material
Blue tack
Torch ruler scissors

It finds the opening and goes through
They won’t travel trough
It would be harder to travel through