***Warm-up Archives***
8th Grade Science
WEEK 1:
8/21 1) What 3 things should be written at the start of class without being told?
2) How much talking is allowed at the start of class? 8/22 1) What needs to be done before the tardy bell rings?
2) List the 5 sections that need to be in your 3-ring folder.
8/23 1) Think of some experiments you've done in past years. List some steps that are common to every experiment.

WEEK 2:
8/26 1) What is a hypothesis?
2) Does it matter if your hypothesis turns out to be incorrect? Explain. 8/27 1) What are some resources you can use to "gather information" before doing an experiment? 2) When should you write a conclusion? 8/28 1) Describe some ways that you can record the result of an experiment. 8/29 1) Use dimensional analysis to find the number of years in 6832800 minutes.

WEEK 3:
9/3 1) Convert by moving the decimal point: a) 321.4 dm = _____mm b) 43.75 cm = ____hm 2) Why can't you just move the decimal point with time conversions?

9/4 1) What units (mm, cm, or m)would be best to measure the following? a) length of your finger b) thickness of a penny
c) distance across the classroom

2) Describe a distance that you would measure in km.
9/5 1) What units (mL, L, or kL) would be best to measure the following? a) water in a pool b) soda can c) bucket of water

9/6 1) In this class, we will measure things using the ________ system. 2) When using a ruler, we will never measure with the ________ side.

WEEK 4:
9/9 1) Describe the location of the
a) cat
b) man
<<picture of a grid with a man, cat, boat, flag, and car>>

9/10 1) List 3 things in the classroom that are moving.
2) Is the classroom moving? Explain.

9/11 1) Las Vegas is 280 miles away. How fast must one drive to get there in 4 hours?
2) Find the slope of the graph: <<picture of a graph with points at (0,0), (2,40), (4,80), and (6,120)

9/12 1) A runner travels at 8 km/h for 180 minutes. How far did he/she run?
9/13 1) A bus's maximum speed is 120 km/h. Is it possible for the bus to travel 730 km in 6 hours? Explain.

Week 5:
9/16 1) Find the average speed.
<<picture of a graph with points at (0,0), (2,100), and (4,200)

9/17 1) A car accelerates when getting on and off the freeway. What could acceleration mean?

9/18 1) A car travels north at 60 miles/hr for 10 minutes. Is the car accelerating? Explain.

9/19 1) What are some things that affect the way a rocket flies?

9/20 1) Explain why it's not necessary to test a launch angle of 0 degrees and 90 degrees.

Week 6:
9/23 1) If we wanted to figure out the speed of the rocket, what could we do?

9/24 1) Do you think it matters which group member stomps on the bottle? Explain.

9/25 1) "The lighter the rocket, the better." Agree or disagree? Why?

9/26 1) A rocket is launched at 10 km/s. How far would it travel in 1 minute?

9/27 1) A rocket at rest is launch to 1400 m/s in 120 seconds. What is its acceleration?

Week 7:
10/1 1) You are in a car going 60 miles per hour. You throw a ball in the air in front of you. Does it hit you in the face? Explain. 10/2 1) 2 people are pushing a block towards the right with a force of 20 N each. What is the net force? Balanced or unbalanced?

10/3 1) The force of ___________ pulls a submarine down while the force of ___________ pushes it up. If the submarine is not
moving up or down, the forces are ______________.

10/4 1) A soccer ball is kicked onto the grass. Eventually it stops rolling. Why?


Week 8:
10/7 1) A soccer ball is rolled with the same force on notebook paper, napkins, and sandpaper. On which surface will the ball
roll the furthest? Explain.

10/8 1) Identify the 2 forces in the diagram. <<pic of skydiver>>

10/10 1) The car on the hill is not moving. Why?

Week 9:
10/14 1) Give an example of when friction is helpful and when it is harmful.

10/15 1) Label all forces in the diagram.
<<picture of a boat moving to the right>>

10/16 1) Label all forces in the diagram.
<<picture of a car going up a hill>>

10/17 1) Label all forces in the diagram.
<<picture of a hangman>>

10/18 1) Label all forces in the diagram.
<<picture of person sitting at a desk>>

Week 10
10/21 1) Netwon's _______ law states that for every ____________, there is an equal and opposite reaction.

10/22 1) Explain why you will need friction between the wheels of your mouse trap race car and the floor.

10/23 1) After testing your mouse trap race car, you will make modifications to try and make it faster.
What are some things that you might change?

10/24 1) When you set a mouse trap, what type of force is contained in the spring?
2) When the car is rolling, what 2 types of friction slow it down?

10/25 1) Label all forces in the diagram.
<<picture of a student sleeping on his desk>>