# Warm up Write in notebook What are the signs of a chemical reaction?

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Warm up Write in notebook What are the signs of a chemical reaction?

Can you name these items?

The answers are … Triple-beam Balance Beaker Safety GogglesTelescope Test Tube Eyedropper Graduated Cylinder

Can you name these items?

The answers are … Vernier Caliper FlaskSpring Scale Mortar & Pestle MicroscopeTest Tube

Name the weather equipment. What does it measure?

Spectroscope Scientists use tools to help them understand the universe, galaxies, stars, and planets. A major tool used to gather information about these objects is called a spectroscope. The scientific technique that utilizes the spectroscope is called spectroscopy HOW DO WE KNOW SO MUCH ABOUT STARS? Being that humans have never actually visited another galaxy, a star, or a planet, how do we know so much about them? Scientists learn a lot about these objects from the light that they send us. The light received can tell us about the objects.

What piece of equipment? What is it used for?

Find the density of the object below. An object was dropped into a graduated cylinder that contained 40 mL. Determine the volume of that object. The object was placed on a triple beam balance. 20 0 5.4 Image from http://www.edinformatics.com/math_science/mass.htm

The solution … Volume = Volume of water & object – volume of water V = 65 mL – 40 mL V = 25 mL M = 25.4 g Density = Mass ÷ Volume D = 25.4 g ÷ 25 mL D = 1.01 g/mL ** The object will sink!

Find the density of the object below. The mass An object was dropped into a graduated cylinder that contained 20 mL. Determine the volume of that object. The object was placed on a triple beam balance. Image from http://ritter.tea.state.tx.us/Image from http://genchem.rutgers.edu/bal3b2.html

The solution … Volume = Volume of water & object – volume of water Volume = 43 mL – 20 mL V = 23 mL M = 373.3 g Density = Mass ÷ Volume D = 373.3 g ÷ 23 mL D = 16.23 g/mL

Use a periodic table and your knowledge of the element families to identify each element by name. 1. I am a Noble Gas that is found in the 6 th period. 2. I am a member of the Alkaline Earth family and have 88 electrons. 3. I am a transition metal that is a liquid at room temperature. 4. I am a member of the Carbon family that is found in the 5 th period. 5. I am a Halide (group 7) that is a gas at room temperature and have 3 energy levels.

The answers are … Radon Radium Mercury Tin Chlorine 1. I am a Noble Gas that is found in the 6 th period. 2. I am a member of the Alkaline Earth family and have 88 electrons. 3. I am a transition metal that is a liquid at room temperature. 4. I am a member of the Carbon family that is found in the 5 th period. 5. I am a Halide that is a gas at room temperature and have 3 energy levels.

Use your knowledge of the relationships in the periodic table to answer each question. ABC DEF GHI 1. If Element B has 14 protons, how many would an atom of Element C have? 2. If Element G has 3 valance electrons, how many would Element A have? 3. If Element I has 3 energy levels, how many would Element F have? 4. If Element D has 22 electrons, how many would Element F have? 5. If Element E has 4 valence electrons, how many would Element I have? Mystery Table

The answers are … ABC DEF GHI 1. If Element B has 14 protons, how many would an atom of Element C have? 2. If Element G has 3 valance electrons, how many would Element A have? 3. If Element I has 3 energy levels, how many would Element F have? 4. If Element D has 22 electrons, how many would Element F have? 5. If Element E has 4 valence electrons, how many would Element I have? 15 3 2 26 5

A. Used to crack open seeds B. Used to tear meat C. Used to bore into trees for insects D. Used to get nectar in flowers E. Used to strain plants and animals from water F. Used to spear fish G. Used to catch and eat insects H. A multipurpose bill used for fruit, seeds, insects, fish, and other animals http://www.normanbirdsanctuary.org/beak_adaptations.shtml #3 #5 #7 #2#4 #8 #1 #6

http://www.normanbirdsanctuary.org/beak_adaptations.shtml #4 A. Seed eaters like sparrows and cardinals have short, thick conical bills for cracking seed. #8 B. Birds of prey like hawks and owls have sharp, curved bills for tearing meat. #3 C. Woodpeckers have bills that are long & chisel-like for boring into wood to eat insects. #7 D. Hummingbird bills are long and slender for probing flowers for nectar. #5 F. Birds like herons & kingfishers have spear-like bills adapted for fishing. #2 G. Insect eaters like warblers have thin, pointed bills. E. Some ducks have long, flat bills that strain small plants and animals from the water. #6 H. Crows have a multi-purpose bill that allows them to eat fruit, seeds, insects, fish, & other animals. #1

Label the parts of the cell. Image: http://fds.oup.com/www.oup.co.uk/images/oxed/children/yoes/nature/plantcell.jpg Cytoplasm Cell Wall Vacuole Endoplasmic Reticulum (ER) Nucleus MitochondriaCell Membrane Chloroplast

The answers are … Cytoplasm Nucleus Chloroplast Cell Membrane Cell Wall Mitochondria Vacuole Endoplasmic Reticulum (ER)

Label the parts of the cell. A.Cytoplasm B. Cell membrane C. Golgi Body D. Lysosome E. Endoplasmic Reticulum F. Nucleus G. Mitochondria H. Ribosome Image: http://web.jjay.cuny.edu/~acarpi/NSC/13-cells.htm

The answers are … 1 – 2 – 3 – 4 – 5 – 6 – 7 – 8 – B. Cell membrane E. Endoplasmic Reticulum F. Nucleus H. Ribosome D. Lysosome G. Mitochondria C. Golgi Body A. Cytoplasm

1. Predict the offspring from a cross between a purebred tall pea plant and a hybrid tall plant. Use T for tall and t for short. (a) Give the genotypes. Purebred Tall = ____ Hybrid Tall = ____ (b) Create a Punnett square to determine the genotypes for the offspring. (c) What is the probability that a plant would be tall? _______ % (d) What is the probability that a plant would be short? _______ % 2. Predict the offspring from a cross between two hybrid tall pea plants. (a) Give the genotype for a hybrid tall plant. ______ (b) Create a Punnett square to determine the genotypes for the offspring. (c) What is the probability that a plant would be tall? _____ % (d) What is the probability that a plant would be short? _____ % (e) If you were to plant 100 seeds from this cross, how many would you expect to be tall?

1. Predict the offspring from a cross between a purebred tall pea plant and a hybrid tall plant. Use T for tall and t for short. (a) Give the genotypes. Purebred Tall = ____ Hybrid Tall = ____ (b) Create a Punnett square to determine the genotypes for the offspring. (c) What is the probability that a plant would be tall? (d) What is the probability that a plant would be short? T T Tt TTTt TTTt 0% 100% TTTt

2. Predict the offspring from a cross between two hybrid tall pea plants. (a) Give the genotype for a hybrid tall plant. ______ (b) Create a Punnett square to determine the genotypes for the offspring. (c) What is the probability that a plant would be tall? (d) What is the probability that a plant would be short? (e) If you were to plant 100 seeds from this cross, how many would you expect to be tall? T t Tt TTTt tt 25% 75% Tt 25% of 100 = 25 plants

Identify the three components of the cardiovascular system. 1. __________________________ 2. __________________________ 3. __________________________

The components are... 1. Heart 2. Blood vessels 3. Blood

Identify the organs of excretion and their function. 1. 2. 3. 4.

The organs of excretion are... 1. kidneys filter blood 2. skin sweat (salt & H 2 O) 3. lungs exhale CO 2 & H 2 O 4. liver recycle RBC’s

Describe the functions of the respiratory system. 1. ______________________________ 2. ______________________________

The functions are... 1. take in air – use O 2 2.eliminate waste (CO 2 )

Determine which of the following are direct and/or indirect rays of sunlight and discuss how they effect the Earth. Image from http://ag.arizona.edu/watershedsteward//resources/module/Climate/images/indirect_rays.jpg A. B.

direct sun – same amount of energy but a greater concentration over a smaller area Indirect Direct indirect – same amount of energy spread over a larger area of the earth therefore it is not as intense

Determine the season in the northern and southern hemisphere. A. B. C. D. E. F. G. H

Image from http://www.uwm.edu/~kahl/CoVis/Seasons/ Winter Summer Spring Autumn Spring The answers are...

Identify the phase of the moon. Image from http://www.mattastro.com/moon.html A.B. C. D.D.

The phases are... A.B. C.D.D. Full MoonFirst Quarter Waxing GibbousWaning Crescent

Identify the phase of the moon. A. B.

The phases are... A. B. Third Quarter Moon New Moon

Choose the correct answer… #3 P. Reardon 2008 – Based on “Science Starters” by T. Trimpe at http://sciencespot.net/ 1. What is the name of the super continent believed to have been present millions of years ago? Nazca Laurasia Pangaea Gondwanaland 2. Which of these statements isn't evidence for the theory of continental drift? -The bulge of South America fitting into the indent in Africa -Similar fossils found in South America and Southern Africa -Volcanoes on the edges of existing plate boundaries

Choose the correct answer… #3 P. Reardon 2008 – Based on “Science Starters” by T. Trimpe at http://sciencespot.net/ 1. What is the name of the super continent believed to have been present millions of years ago? Nazca Laurasia Pangaea Gondwanaland 2. Which of these statements isn't evidence for the theory of continental drift? -The bulge of South America fitting into the indent in Africa -Similar fossil remains being found in South America and Southern Africa -Volcanoes on the edges of existing plate boundaries Pangaea -Volcanoes on the edges of existing plate boundaries The answers are…

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