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©2015 STEM Stork 1
SCIENCE REVIEW ACTIVITY STATION
Understanding Parts of Atoms
and Atomic Mass
DIRECTIONS FOR USE For the Buyer
Thanks for your purchase! This resource is meant to be an easy-prep review center to help students refresh knowledge, spiral throughout the year, and prepare for testing. This resource is targeted for 8th grade Texas State Standards (TEKS) 8.5.A, but can also easily be used in any state. Students can work on this activity individually or with a partner. What I love about this resource is that you can just prepare it ahead of time and have a spot in the room where you can direct students that need to review. Read the suggestions for setup below to get the most out of this resource. 1. Print • Print enough double-sided copies of the student recording pages (pages 5 & 6 of this packet) so that you
will have enough for each of your students. • Print enough copies of the vocabulary words and definitions (page 7 of this packet) so that you will have
enough for each of your students—noting that there are two per page. • Print one copy of the “Review Activity Directions” (page 8 of this packet)—this can be done on colored
paper and laminated if desired for long-term use. • Print one copy of the multiple choice questions page (page 9 of this packet) )—this can be done on colored
paper and laminated if desired for long-term use. • Print one copy of the answer key for your reference or so that students can self-check. • (Optional) Print a copy of the black and white cover page to put on the front of your activity folder or
container 2. Setup Materials • Cut vocabulary sheets in half • Cut out multiple choice questions cards • Make sure that glue and scissors are available. Colored pencils are optional. • Organize for ease of use for your students. You can do this in many different ways. In my class, I just
put the materials into a folder and glue the cover sheet onto the outside. Then, I store the materials in a magazine rack. Alternatives would be to put all materials in a tub or a drawer. See the pictures on the next page for organization ideas.
3. Set Student Expectations • Before you use the review center activities with your students for the first time, show them how to use
the resources. Students should be completing four sections: 1) Cut and paste the vocab words as matching pairs, 2) Fill in the blanks with the vocab words, 3) Complete the review activity using the directions page provided, and 4) Answer the multiple choice questions from the cards. Once they have completed one activity, completing another one should be self-explanatory.
• Let students know how you would like them to turn in their completed activity pages. After I check their student pages, I like to let the students keep them as a study guide.
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DIRECTIONS FOR USE Continued….
Setup in Folders
Setup in Tubs
I look forward to great feedback on my TpT store page! If you have any questions, please feel free to email me at [email protected]. I work really hard to make sure this product is up to the highest standards, but if you notice any errors, please contact me right away to let me address the problem before leaving negative reviews. Thanks! This product was created by STEM Stork ©2015. This product is for single classroom use only. If you have enjoyed this product and want to recommend it to your colleagues, please direct them to my TpT store. Thanks!
Thanks for your purchase!
©2015 STEM Stork 4
SCIENCE REVIEW
ACTIVITY STATION
Understanding
Parts of Atoms and Atomic Mass
VOCABULARY MATCHING Cut out the vocabulary and match them to their correct definition.
Glue the matched word and definition in the space below.
FILL IN THE BLANK Use the vocabulary words from the vocabulary matching section
to fill in the missing information in the passage below
Matter is anything that has mass and takes up space. The primary constituent of matter is called an ________________ and is made up of ___________ . Each atom is made of smaller particles, known as subatomic particles. In the ____________ , or middle, of an atom are two types of subatomic particles: ____________ and ____________ . The positively charged particles in the nucleus of an atom are called ____________ while the uncharged particles in the nucleus are called __________ . Orbiting the nucleus of an atom is a cloud of negatively charged ____________ . These negatively charged particles are much smaller in mass than protons and neutrons, so much so that they do not contribute a significant amount to the mass of an atom. Therefore, to calculate the _____________ of an atom, you find the sum of the protons and neutrons found in the atom.
Atoms Review
Name:________________
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MULTIPLE CHOICE Write your answers to the multiple choice questions from the cards in the space below.
REVIEW ACTIVITY Follow the directions on the activity sheet and record your work below.
# 1 _____________ # 3 _____________
# 2 _____________ # 4 _____________
Atomic Mass:________________________ How did you get this answer? _______________________________________________________________ One limitation of this model: _______________________________________________________________
Atoms Review
©2015 STEM Stork 6
Element A positively charged subatomic particle located in the nucleus of an atom
Atom A subatomic particle found in the nucleus of an atom that has no charge
Proton A small, dense region located in the center of an atom
Neutron A substance that is made up of one kind of atom
Electron The mass of an atom based on the sum of the protons and neutrons
Nucleus A negatively charged subatomic particle located in a cloud around an atom’s nucleus
Atomic Mass The smallest particle of an element that cannot be broken down without changing the physical properties
Element A positively charged subatomic particle located in the nucleus of an atom
Atom A subatomic particle found in the nucleus of an atom that has no charge
Proton A small, dense region located in the center of an atom
Neutron A substance that is made up of one kind of atom
Electron The mass of an atom based on the sum of the protons and neutrons
Nucleus A negatively charged subatomic particle located in a cloud around an atom’s nucleus
Atomic Mass The smallest particle of an element that cannot be broken down without changing the physical properties
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REVIEW ACTIVITY INSTRUCTIONS
1. The figure on the activity page represents an atom. Label
the nucleus and the electron cloud.
2. Add six protons to the correct part of the atom using the
symbol P+. Draw a circle around each P+ to represent the
protons. Color in the protons (optional).
3. Add six neutrons to the correct part of the atom using
the symbol N. Draw a circle around each N to represent
the neutrons. Color in the neutrons (optional).
4. Add six electrons to the correct part of the atom using
small dots to represent their tiny size. Write a minus sign
next to each electron dot to show its negative charge.
5. In the space provided below the atom model, calculate the
atomic mass of the atom you drew. Explain the reasoning
behind your answer.
6. Explain one limitation of the atomic model that you drew.
Atoms Review
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# 1 # 2
# 3 # 4
A neutrally charged atom has 47 protons and an atomic mass of 108. How many neutrons does this atom have?
What types of subatomic particles are found in the nucleus of an atom?
A) 47 neutrons
B) 155 neutrons
C) 61 neutrons
D) 108 neutrons
A) Only negatively charged particles B) Both neutrally and positively charged particles
C) Only neutral particles
D) The nucleus of an atom does not contain subatomic particles
Which of the following best describes a proton?
A) A subatomic particle that is very, very small and has a negative charge
B) A positively charged subatomic particle that is found in a cloud around the nucleus of an atom
C) A neutral particle found in the nucleus of an atom
D) A positively charged subatomic particle found in the nucleus of an atom
How do you find the atomic mass of an atom? A) Add the total number of electrons to the total number of protons
B) Subtract the number of protons from the number of neutrons
C) Find the sum of protons and neutrons in an atom
D) Subtract the total number of electrons from the number of neutrons in an atom
Atoms Review
Atoms Review
Atoms Review
Atoms Review
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VOCABULARY MATCHING Cut out the vocabulary and match them to their correct definition.
Glue the matched word and definition in the space below.
FILL IN THE BLANK Use the vocabulary words from the vocabulary matching section
to fill in the missing information in the passage below Matter is anything that has mass and takes up space. The primary constituent of matter is called an ___e l e m e n t ___ and is made up of ___a t o m s ___ . Each atom is made of smaller particles, known as subatomic particles. In the __n u c l e u s _, or middle, of an atom are two types of subatomic particles: __p r o t o n s __ and _n e u t r o n s _ . The positively charged particles in the nucleus of an atom are called __p r o t o n s __ while the uncharged particles in the nucleus are called _n e u t r o n s _ . Orbiting the nucleus of an atom is a cloud of negatively charged _e l e c t r o n s _ . These negatively charged particles are much smaller in mass than protons and neutrons, so much so that they do not contribute a significant amount to the mass of an atom. Therefore, to calculate the ____a t o m i c m a s s ____ of an atom, you find the sum of the protons and neutrons found in the atom.
ANSWER KEY
Element A substance that is made up of one kind of atom
Atom The smallest particle of an element that cannot be broken down without changing the physical properties
Proton A positively charged subatomic particle located in the nucleus of an atom
Neutron A subatomic particle found in the nucleus of an atom that has no charge
Electron A negatively charged subatomic particle located in a cloud around an atom’s nucleus
Nucleus A small, dense region located in the center of an atom
Atomic Mass The mass of an atom based on the sum of the protons and neutrons
Atoms Review
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MULTIPLE CHOICE Write your answers to the multiple choice questions from the cards in the space below.
REVIEW ACTIVITY Follow the directions on the activity card and record your work below.
# 1 ____C____ # 3 _____D_____
# 2 ____B____ # 4 _____C_____
ANSWER KEY
Atomic Mass:_________1 2 _________
How did you get this answer?
____B y a d d i n g t h e p r o t o n s a n d n e u t r o n s _____________
One limitation of this model:
_The relative size of the protons and electrons, the positions of the electrons, etc.
Students draw 6 P+
and 6 N here
Students draw 6 dots with a (-) next to them on this outer layer
Electron Cloud
Nucleus
Atoms Review
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