Candle Rate Lab Report

Hypothesis

The more candles lit in the beaker will make the water rise higher.

Materials

• Water

• Plastic plate x1

• Candles x8

• Beaker that holds 250 ml x1

Method

1. Put on your safety goggles and apron, so that you can stay safe if anything goes wrong

2. Place plasticine on the middle of the plate

3. Put water into the plate so that when the beaker is placed onto the plate, the water is over the lip of the beaker.

4. Roll 2 rubber bands onto the beaker; one being at the level of the water and the other on the top of the beaker. We will slide the top rubber band to the level of the water after the candles have burnt out.

5. Place a candle in the middle of the lump of plasticine.

6. Strike a match and light the candle

7. Immediately place

Watch the water rise. Roll the top rubber band to the level of water and where it rose to.

9. Using your ruler, you can take the beaker off of the candle and measure the distance between rubber bands in millimetres. Record your data down

10. Repeat steps 4-8 until you’ve use all of your candles

11. Once finished, use the data you’ve recorded from the practical to create a graph to display your results

Hazards

Hazard Reason of Hazard Safe Operating Procedures

Candles Candles can burn with fire and wax on contact to your skin. Wear goggles and an apron. Never leave the flame unattended.

Matchers Matches can burn user if not used with caution and care. Be careful when lighting a match and disposing the match. Never leave them unattended

Results

Discussion

1) Describe the shape of the graph you plotted.

The graph that I have created starts off low at 8, and then rises up from 11 to 20. It then goes on a very slight slope to 28, and drops down to 20. It then gradually makes its way up to 24 and then goes up even further to 30. It looks a lot like a constellation with a dish at the top. You could say it’s got a zig-zag feel to it since of how ‘up and down’ it

The amount of plasticine can impact the practical by the mass of the plasticine; replacing some of the fluid and making the water rise higher. This is the basic idea in Archimedes’ Principle, where the mass of the object can be measured with how much water rises if it was placed in it. The more plasticine that is placed in the water will make the water level rise higher because the plasticine is taking up space. The amount of water does not change, but it gives the illusion that there is more water, possibly making the water seem like it has risen higher when measured. The plasticine can also get in the way of placing down the beaker, creating a random