Unit 1- Designing and Experiment
Categorize each of the statements below as either an observation or inference.
1. The sky is cloudy.
2. It is going to rain.
3. I hear footsteps coming down the hall.
4. The teacher is coming down the hall.
1. Observation
2. inference
3. Observation
4. Inference
How many atoms are in the compound H2O4?
What is 6?
When the sun heats up water in rivers, lakes and oceans turning it into tiny droplets of water...
What is evaporation?
What is erosion?
The movement of sediment from one place to another by things such as wind and water.
As altitude increases, atmospheric pressure ________.
Provide an example of a qualitative observation.
Example: The sky looks very blue today.
What are two properties of metals?
1. Shiny
2. Conducts electricity
3. Malleable
4. Ductile
When so much water builds up in the clouds that they cannot hold anymore...
What is precipitation?
What is the difference between fracture and cleavage?
Cleavage is breaking along straight lines, fracutre is breaking into irregular shaped pieces.
Which gas makes up most of the gas in the atmosphere (78%)?
What is Nitrogen?
You collected data on the height of a sunflower growing outside your house everyday for the past month. You want to create a graph that shows the height of the sunflower each day of the month. What type of graph should you use?
Hint: bar graph or line graph?
What is line graph?
Over time, use a line!
Where are non-metals found on the periodic table?
What is the right!
What is the difference between transpiration and evaporation?
Transpiration is water vapor released into the air from plants, evaporation is water vapor released from liquid water.
What are the three different types of rocks? Choose one and explain how it forms
1. Sedimentary- sediment compacted and cemented together
2. Igneous- from lava
3. Metamorphic- heat and pressure
Name two reasons why the atmosphere is important
Example: protects us from harmful radiation and destroys meteors before they reach the Earth.
You are conducting an experiment to determine if plants grow better when given water or soda. You plant two identical plants, and start by giving one plant 1 cup of water, and the other plant one cup of soda. Each day you measure the height of the plant.
What is the independent variable in your experiment?
What is the liquid the plant is given.
How can you tell the difference between a chemical and a physical change?
Chemical change creates a new substance- look for bubbles, formation of a precipitate, smells
What causes surface ocean currents?
What are two different tests you can do to identify a mineral?
1. Moh's hardness test
2. Streak Test
Located in the stratosphere. Blocks out harmful radiation from the sun.
A cube has a side length of 3cm, and a mass of 14 grams. What is the density of the cube?
What is 0.52 g/cm3
Name three characteristics of acids.
1. Corrosive
2. Sour
3. pH < 7
4. Donates H+ ions
5. Turns blue litmus paper red
What causes deep ocean currents?
Bonus: What is the word that includes both influences of deep ocean currents
Caused by differences in density caused by salinity and temperature
bonus: thermohaline
What are the five characteristics of minerals?
1. Color
2. Luster
3. Streak
4. Density
5. Cleavage
Name all five layers of the atmosphere in order from closest to the earth to farthest.
1. Troposphere
2. Stratosphere
3. Mesosphere
4. Thermosphere
5. Exosphere