Observations
What is an observation?
Data that has been recorded
What is evidence?
Something that proves a hypothesis right or wrong
What is a hypothesis
A scientific statement that can be proved true or false
What base unit measures time?
Second
What is the scientific process? In other words, what steps do scientists take to make a discovery? Clue: Think about the vocabulary words we talked about.
1. Make observations
2. Create a hypothesis
3. Conduct an experiment
4. Collect Evidence
5. Analyze evidence to determine if hypothesis is correct
6. Experiment again if hypothesis is wrong
What is a qualitative observation?
An observation that describes the physical characteristics
What are two things that can be considered evidence?
Observations
Data
Research
What is an experiment?
A scientific procedure that is used to make a discovery
What prefix is the smallest? Milli, centi, or kilo?
Milli
What is a quantitative observation?
An observation that includes a number
Write observations of materials
Collect quantitative observations (temperature, height, length, volume)
Compare data to other groups
Research evidence that has been collected by other scientists
What are three things that are in soil?
Decomposed organic materials (dead animals, dead plants)
Bacteria
Weathered rocks
What is the label of this abbreviated measurement: mL?
millileters
What is a qualitative observation of our classroom?
What evidence would you need to collect if you wanted to know what science material is the heaviest?
Measure the mass of each object and compare them
What are three types of weather that can cause weathering?
Rain
Sun/Heat
Wind
Volcanic eruption
Water (Ocean)
What are you measuring if you are measuring in milliseconds?
What is a quantitative observation of our classroom?
Anything that includes a number
What evidence would you need to prove that the sun is the hottest thing in our solar system?
The temperature of the sun and the other planets in our solar system
To measure each and every thing in our world (mass, volume, distance, time)
You are trying to measure how far Chicago and Springfield are from each other. What type of measurement would be best to measure this? Explain.
Kilometers - because meters measure distance and kilo is the biggest measurement of 1000 meters. The others are smaller and therefore would not help someone understand how far these two cities are