10/13-14 Review Mid Cycle Assessment

The box is moving to the right (black arrow is indicating motion). Label the forces (using the color of the arrows) acting on the box
Word Bank: normal, friction, gravity, applied

blue = ?
yellow = ?
red = ?
green = ?

​

​DO NOW - (use whiteboard)

​Review for Assessment - points received will be extra credit

By Mrs. Rodriguez - your favorite science teacher!

SCI.6.6.E

identify the formation of a new substance by using the evidence of a possible chemical change, including

production of a gas, change in thermal energy, production of a precipitate, and color change.

​SCI.6.7.A

identify and explain how forces act on objects, including gravity, friction,

magnetism, applied forces, and normal forces, using real-world applications.

Match

Match the following evidence with the observation

• butter on bread is a

• Over cooked is a

• baking soda/vinegar

• Chewing is a

• Red rust is a

Physical Change - because it is melting.

Chemical Change - because it is burned.

Chemical Change - it produced gas.

Physical Change - because size changes.

Chemical Change - rust is new substance

• Physical Change - because it is melting.

• Chemical Change - because it is burned.

• Chemical Change - it produced gas.

• Physical Change - because size changes.

• Chemical Change - rust is new substance

Evidences of a chemical Change

A chemical change is when a new substance is made and it can’t be changed back easily.

• Production of gas

• Change in thermal energy

• Production of a precipitate

• Unexpected color change

- bubbles forming

- change in temperature (cold or hot)

- after two liquid solutions are combined a solid is formed.
🌟(i.e. clear and colorless solutions are mixed forming a white solid)

- two substances are mixed and an unexpected color appears.
🌟(i.e. yellow and colorless solutions are mixed forming an orange color)

Multiple Choice

Which of the following is an indicator of chemical change?

• Change in shape with the application of some type of force

• Change in temperature with no outside heat source applied

• The formation of a solid due to freezing

• The formation of a gas due to evaporation

Multiple Choice

A student made the table to record his observations when mixing baking soda and vinegar in a beaker. Which of these is the best evidence for the formation of a new substance?

• solid disappearing

• bubbles forming

• solid settling

• Liquid remaining clear

Multiple Choice

The formation of a solid when two liquids combine is called?

• Solidification

• Freezing

• Precipitate

• Solubility

Multiple Choice

A ________ change is when a new _________ is formed

• chemical; substance
• chemical; mixture

• state; substance

• state; mixture

​Moving on......to types of forces

Multiple Select

Which of the following are examples of forces that can change an object’s motion? Select THREE correct answers.

• Friction slowing down a skateboard on gravel

• Light shining on a mirror

• Gravity pulling an apple down from a tree

• A magnet pulling a paper clip across a table

​Applied Force: A push or pull used to move an object.

​​applied force

Normal Force: The support force from a surface that pushes back on an object.

​​Normal force

Gravitational Force: The pull that Earth (or another planet) has on objects. Non-Contact Force

​Types of forces

​​Friction force

Friction Force: A force that slows or stops motion when two surfaces rub together. (works in opposite direction)

​​Magnetism

Magnetism: A force that pulls certain metals toward a magnet or causes magnets to attract or repel. Non-Contact Force

​​Gravitational force

Multiple Select

Which of the following are non-contact forces? Choose two correct answers.

• Friction

• Magnetism

• Applied

• Gravitational

• Normal

Multiple Choice

A student places a paper clip near a bar magnet. When the paper clip is very close, it is pulled quickly toward the magnet. When the student moves the paper clip farther away, it moves more slowly toward the magnet.

Which factor is affecting how strongly the paper clip is pulled?

• The color of the magnet

• The distance between the magnet and the paper clip

• The size of the paper clip

• The type of table the magnet is on

Multiple Choice

A student slides a book across a wooden table, then slides the same book across a rubber mat. The student notices the book slides much farther on the wooden table than on the rubber mat.

Why did the book slide farther on the wooden table?

• The book is heavier on the rubber mat.

• The wooden table has less friction than the rubber mat.

• The rubber mat produces less friction than the wooden table.

• The wooden table increases the speed of the book.

• Friction slows or stops motion.

• Rough surfaces = more friction, smooth surfaces = less friction.

• Heavier objects = more friction.

• Friction helps us walk, drive, and hold things.

​​Friction

• Magnets pull certain metals like iron.

• Magnets can attract or repel other magnets.

• The ends (poles) of a magnet are the strongest.

• Magnetic force gets weaker with distance.

• Earth is like a giant magnet, which is why compasses work.

​​Magnetism

Multiple Choice

What force is pulling the skydiver down towards the center of the earth?

• Magnetism

• Normal

• Friction

• Gravity

Draw

Draw a picture of someone using force to move something. Label the following forces: applied, normal, gravitational using ARROWS.

Final Questions?
Mid-Cycle Assessment

25-26_HISD_CADFA_G6_SCI_E_10.10

• Remain quiet the entire time.

• Before submitting let me know please!

• After you have submitted work on PHET Simulation (link on canvas)