Tag: Science

The Effects of Heat…

So! Recently, we have done these experiments with Convection, Contraction, Conduction, and Diffusion.

The first we did was Conduction… How did we do it? Well firstly we set up the equipment needed for our experiment. We plugged in the Bunsen Burner, grabbed potatassium jelly, and using that, stuck pins onto a little metal rod. We stuck the metal rod to the retort stand and clamped it in to make sure it stuck on tight and good while it was getting burnt later. We light up the Bunsen Burner and start our stopwatch. Before finally ending the experiment and putting it into our write-up.

Next, we did Convection, and started by setting down a heatproof mat for the Bunsen Burner. We put it down onto a tripod so it stayed off the ground and so the Bunsen Burner could fit underneath.

 

 

 

 

 

 

 

My teacher told me to send it even though It isn’t finished so maybe I will finish it after school time.

DNA

How Can You Tell That Something is Alive?

To tell that something is real you have to see if it can reproduce, grow, adapt, and react to the environment. There are other things that you can tell are alive. If it is moving, if it is breathing, if it is reacting to pain, and such.

 

DNA – Deoxyribo Nucleic Acid

DNA has these two walls, that are 3 cm apart. The four letters we use for this are ATG and C.

T goes with A

A goes with T

G goes with C

And C goes with G

If any of these letters are not with their designated letter it can cause Mutations which can cause stuff like cancer.

It’s almost like a book. And your book is 3 Billion pages long

You also have 20 trillion cells.

And we made this with lollies

Heres a picture

Ramp It up! (Or down!)

Hypothesis

My hypothesis is that the ping pong ball would go further because it’s bigger, more bouncy, and lighter than the marble ball.

Background

The ancient Greek people made similar ramps of stone to help with people who had trouble walking. Making ramps more than 2300 years old. The oldest known object designed to help the disabled.

Steps

We rolled the balls down the ramp 3 times and measured how far It rolled using a ruler than marking it with chalk.

Results

Roll Marble Ping Pong
1 8 10
2 12 11
3 13 8
Average 11 9

Were you correct?

No, the marble ball rolled father than the ping pong officially rolling a total of 44.

Conclusion

In the end the experiment was good… expect my hypothesis but it doesn’t matter I had fun rolling the ball down the ramp. (even if I wasn’t at school those two days)

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