What is weathering?
Breaking down of rock through physical and chemical means
What type of change are the following examples of?
- Gas produced (bubbles)
- Change in temperature
- Change in odor
- Change in color
Chemical change
What is the difference between acquired traits and inherited traits?
Acquired traits are traits that a person develops during their lifetime.
Inherited traits are traits that a person has from the time they are born and are passed on from one generation to the next.
Molly believes the wings of a species of butterflies are larger next to a pond by her home, than deep in the woods by her school. Which tool would best help her in her research?
A. Microscope
B. Scale
C. Ruler
D. Test Tubes
C. Ruler
What materials are needed for a circuit to work?
- Must get all 3 to be given the full 100 points
Battery, wire, light bulb
What is deposition?
Weathered material that is added to a land form; changes land shape
What type of change are the following examples of?
- Steam
- Ice melting
- Mixing
- Evaporating
Physical change
Is the following an inherited or acquired trait? Explain why.
- Ability to swim
Acquired trait because you aren't born knowing how to swim, you have to learn how to do it.
Which is a plant cell and which is an animal cell?
Explain how you know.
Cell X: Animal Cell, Round, no cell wall
Cell Y: Plant Cell, Rectangular, cell wall
What's the difference between an open and closed circuit?
An open circuit is a circuit that isn't working.
A closed circuit is a working and COMPLETE circuit.
What is erosion?
Weathered material moved around by wind and water
What's the difference between a physical and chemical change?
Give examples.
A chemical change is a change in matter that produces new substances. Ex: burning of paper
A physical change is a change in matter that might change the form or appearance of a substance, but doesn't produce any new substances. Ex: cutting up a piece of paper
Is the following an inherited or acquired trait? Explain why.
- Being tall
Inherited because it goes down from generation to generation.
Part A: A
Part B: B
What's the difference between an insulator and a conductor?
An insulator is a material that doesn't allow electricity to flow through easily.
A conductor is a material that electricity can move through easily.
How many different types of weathering are there? What are they?
(Bonus points for both answers correct)
There is mechanical and chemical weathering
Mechanical - physically breaks up rock
Chemical - decomposes or decays rocks and minerals
What kind of change is below?
Ansley's father is immune to poison ivy. Ansley is also immune to poison ivy. Ansley's immunity to poison ivy is which kind of trait?
environmental
acquired
learned
inherited
Inherited
Many meat packages warn you to cook meat thoroughly before eating. Why should you cook chicken so you are not exposed to harmful bacteria?
Some bacteria can cause food poisoning if not cooked properly. Heat can kill harmful bacteria in food.
What particle is positively charged?
What particle is negatively charged?
What particle is neutrally charged?
Positive - Proton
Negative - Electron
Neutral - Neutron
Name something that is formed by erosion
Caves, arches, cliffs, bays
Is cooking pancakes a physical or chemical change?
Explain why.
Pancakes are a chemical change.
When you raise the heat on your pancake mix, it causes a chemical reaction between amino acids in the proteins and the carbon and oxygen atoms from sugars.
Give an example of a trait you have that was inherited and a trait you have that was acquired.
**Must get approved for points depending on what is said
What's the difference between bacteria and viruses?
- A virus is a very tiny particle that can infect the cells of living organisms and cause disease.
- Bacteria are tiny and cannot be seen with our eyes, but they are much bigger than viruses.
- Most viruses are harmful, but there are many good bacteria.
D because a conductor allows material through whereas an insulator doesn't allow anything through