HW

Science Quiz Thursday, October 20th- Observations, Inferences, Variables
Review guide answers were checked in class today

Part 1-

1. Manipulated Variable (Independent Variable) - something that is changed on purpose in an investigation.

2. Responding Variable (Dependent Variable) - the affect of the change in the investigation that leads to the outcome.

3. Controlled Variable- a variable that stays the same for accurate data.

Types of variables that can affect different situations....

1. Some examples- soil, amount of water, amount of sunlight, location,

time of year the tree is planted

2. Some examples- shoes, weather, training, sleep, food, age, health conditions

Identify the manipulated, responding, and controlled variables

1. MV (IV)- time of day

RV (DV)- quiz performance

CVs- same quiz, location, teacher, subject

2. MV (IV)- minutes of spelling practice

RV(DV)- scores

CVs- groups of students, environment, study materials, teacher

3. MV(IV)- tennis ball

RV( DV)- best bounce

CVs- parking lot, height of bounce, person, weather

Part II

1. Observation- Describing an object or event using your 5 senses.

2. Inference- An assumption of cause based on the data that was collected. Describing why the data occured using Perhaps/Maybe.

You observe that the sky at noon is darkening.

Perhaps it will rain.

Maybe there is a solar eclipse.

The classroom lights are off.

Maybe there is no school.

Perhaps they are using the Promethan board.

All middle school students are bringing lunch from home.

Maybe they are going on a field trip.

Perhaps there is no hot lunch or food days.

Journal Lightning

Periods 2/4/6 due Friday, October 21st (early release day on Thursday, October 20th)

Compare and contrast the following science skills- hypothesis and prediction. Use a Venn diagram to complete this journal entry. Each "circle" area should have at least three complete thoughts using complete sentences.