Technology

1. On the first day, we searched up a puzzle design to give us an idea of what we were doing.
2. We then drew some lines on a piece of paper which we would be drawing on the wood.
3. We drew the same thing on 3 pieces of wood and got a rubber band to hold them together.
4. After that we marked out where we would be cutting out the wood, the first one was a rectangle the second was a uppercase T and the last one was lowercase t.
5. We then started cutting them out.

Aim:
To observe xylem tissue and prove that they transport water up the plant.

Equipment:
One stick of celery with the leaves still attached, a retort stand, boss head and clamp, a Petri dish, water, food colouring, a knife or scalpel.

Method:
1. Make a cut across the base of the celery stalk to expose a new section of the stem.
2. Fill the Petri dish with water and add a few drops of food colouring.
3. Place the celery stalk in the petri dish and gently clamp it in place using the retort stand, boss head and clamp.
4. Leave the stalk undisturbed for 24 hours.
5. Remove the stalk from the clamp and petri dish. Cut the stem about 1/3 of the way up the stem.

Investigating Refraction Through Lenses

 Aim: 

To investigate how different types of lenses refract light.

Equipment:

 Triple-slit ray slide, power supply, a concave lens and the convex lens.

Method:

1. Set up the ray box, Triple-slit ray slide and  power supply

2. Place the convex lens in the space below. Place the ray box at the top of the page and shine the three rays of light at the tens. Make sure the central light of ray hits the lens at 90degrees as indicated in the diagram.

3. Carefully trace the direction of the incoming and refracted rays.

4. Repeat using the concave lens

Science

Investigating Refraction- Bending light

Aim: 

To investigate how light is affected by changing the substance it is travelling through.

Equipment: 

Ray box, power source, glass perspex block, single-slit ray slide.

Method:

Collect the equipment from your teacher, and set them up to produce a single beam of light.

Part A: Going from Air to Glass

1. Place the glass block in the shaded area below 

2. Place the ray box at the top of the page and shine the beam so it travels along the 10degrees line to the centre of the protractor (this is your angle of incidence, 1degrees)

Concave Mirrors:
Concave mirrors have a shiny surface on the inside of the curve. When looking at a tablespoon, the bowl of the spoon is concave.

Convex Mirrors:
Convex Mirrors have the shiny surface on the outside of the curve. when looking at a tablespoon, the back of the spoon is convex.

Aim:
To investigate the reflection of the light rays in concave and convex mirrors.

Method:
1. Set up your ray box, triple-slit ray slide concave and convex mirrors, power supply
2. Place the mirror on your book as indicated below. place the ray box at the top of the page and shine the 3 rays of light at the mirror.
3. Ensure that the middle ray of light is hitting the mirror at a 90degrees angle.
4. Carefully trace the direction of the three incident rays and the three reflected rays.