EXPERIMENT WITH KAMRYN!

 This was my science experiment with Kamryn. We were testing if things could float or not. It was really fun. I hope I can do this again.

Topic 4

Floating and sinking

Questions

Why does something float?

It is light and mostly full of air

Why does something sink?

It is heavy and doesn't have much air

Why is something semi float?

It is 50 50 full of air and half not much 

Buoyant 

-Both things

Positive buoyant

-light things

Negative buoyant

-heavy things

Buoyant experiment- Aim or purpose:Predict and test the buoyancy of objects.  Equipment: -A variety of balls Marbles-large and small size Golf ball Table tennis ball Tennis Several blocks of material Different sized wooden blocks Different sized plastic blocks Polystyrene rectangular

Name of object	Size- cms L-W-D	Weights-gms	composition  (what made of)	Prediction  Float or sinks	Buoyancy result
Table tennis	13cm	2.30	plastc	Float	foat
Tennis ball	20.5cm	56.02	rubber	Float	Semi float
Small marble	5cm	5.32	Hard plastic	Sink	Sink
Golf ball	13cm	45.64	Hard plastic	Sink	Sink
Big marble	8cm	21.28	Hard plastic	Sink	Sink

Name of object	Size- cms L-W-D	Weights-gms	composition  (what made of)	Prediction  Float or sinks	Buoyancy result
Plastic blocks	17cm	8.92	Hard plastic	Semi float	Semi float
1 big cube	9 cm	4.89	wood	Semi float	Semi Foat
1 small cube	4cm	0.56	wood	Semi float	Semi float
Long cube	9.5cm	19.35	wood	Semi float	Semi float

Name of object	Size- cms L-W-D	Weights-gms	composition  (what made of)	Prediction  Float or sinks	Buoyancy result
Styrofoam	7cm	0.04	Styrofoam	Float	Float
Wood	14cm	80.70	wood	Semi float	Semi Foat

Method

Before you test each object you have. Get the right and accurate measurement and weight. Describe the material and predict density. Recording is optional

Gently place each of the objects into the water bath. Take up and look at what happens. It’s behavior.