Problems 235 to 342......11.1 Mby PDF... [Download Here]

Index of Problem Titles by Approximate Grade Band

Grade 3 to 5

Counting Atoms in Molecules 3-5 1

Planetary Conjunctions 3-5 2

Parts Per Hundred 3-5 3

Star Cluster Math 3-5 4

Atoms – How sweet they are! 3-5 5

Kepler Spies Five New Planets 3-5 69

Grades 6 to 8

The Hand of Chandra 6-8 6

The Martian Dust Devils 6-8 7

Solar Storms – Fractions and Percentages 6-8 8

Energy at Home 6-8 9

Carbon Dioxide Increases 6-8 10

NASA Sees Carbon Dioxide 6-8 11

Tempel-1 : Close-up of a Comet 6-8 12

Exploring a High-Resolution Satellite Photo 6-8 13

Some Famous Unit Conversion Errors 6-8 14

Identifying Materials by their Reflectivity 6-8 15

Chandra Spies the Longest Sound Wave in the Universe 6-8 16

Details from an Exploding Star 6-8 17

Changing Perspectives on the Sun’s Diameter 6-8 18

Earth’s Changing Rotation Rate and Length of the Day 6-8 19

Planetary Alignments 6-8 20

Chandra Studies an Expanding Supernova Shell 6-8 21

Counting Craters on the Hubble Space Telescope 6-8 22

LRO Sees Apollo 11 on the Moon 6-8 70

LRO and the Apollo-11 Landing Site 6-8 71

LRO’s First Image of Mare Nubium 6-8 72

LRO- Searching for Lunar boulders 6-8 73

LRO Explores Lunar Surface Cratering 6-8 74

IBEX Creates an Unusual Image of the Sky 6-8 75

The Mysterious Hexagon on Saturn 6-8 76

Scientific Data – The gift that keeps on giving! 6-8 77

Methane Lakes on Titan 6-8 78

SDO: Measuring the Speed of an Eruptive Prominence 6-8 79

SDO Reveals Details on the Surface of the Sun 6-8 80

The Terra Satellite Spies the Gulf Oil Catastrophe of 2010 6-8 81

Recent Events: A Perspective on Carbon Dioxide 6-8 82

The Rate of Oil Leakage in the Gulf Oil Spill of 2010 6-8 83

Grades 9 to 11

Satellite Drag and the Hubble Space Telescope 9-11 23

Counting Galaxies with the Hubble Space Telescope 9-11 24

The Eagle Nebula Close-up 9-11 25

Angular Size and Similar Triangles 9-11 26

ISS Orbit Altitude Changes 9-11 27

Solid Rocket Boosters 9-11 28

Evaluating Secondary Physical Constants 9-11 29

Space Mobile Puzzle 9-11 30

Spotting an Approaching Asteroid or Comet 9-11 31

The Most Important Equation in Astronomy 9-11 32

Solar Insolation Changes and the Sunspot Cycle 9-11 33

Mare Nubium and Las Vegas 9-11 34

Ice or Water? 9-11 35

Water on Planetary Surfaces 9-11 36

Modeling the Keeling Curve with Excel 9-11 37

The Deep Impact Comet Encounter 9-11 38

Spitzer Studies the Distant Planet Osiris 9-11 39

How Hot is That Planet 9-11 40

Scientists Track the Rising Tide 9-11 41

Getting an Angle on the Sun and Moon 9-11 42

Seeing Solar Storms in STEREO 9-11 43

How to Build a Planet from the Inside Out 9-11 44

Unit Conversions: Energy, Power and Flux 9-11 45

The Elementary Particle Masses 9-11 46

Energy and Mass – Same things but different. 9-11 47

Exploring the Large Hadron Collider 9-11 48

Exploring the Big Bang with the LHC 9-11 49

The Global Warming Debate and the Arctic Ice Cap 9-11 50

Star Light…Star Bright 9-11 51

Fermi Detects Gamma-rays from the Galaxy Messier-82 9-11 52

Webb Space Telescope: Detecting dwarf planets 9-11 53

Computing the Orbit of a Comet 9-11 54

LRO-The Apollo-11 Landing Area at High Resolution 9-11 84

Spitzer Telescope Discovers New Ring of Saturn 9-11 85

IBEX Uses Fast-moving Particles to Map the Sky 9-11 86

Chandra Sees the Most Distant Cluster in the Universe 9-11 87

Solid Rocket Boosters and Thrust 9-11 88

Exploring the Ares-1X Launch: Downrange Distance 9-11 89

Exploring the Ares-1X Launch: Parametrics 9-11 90

Exploring the Ares-1X Launch: Energy Changes 9-11 91

Exploring the Ares-1X Launch: The Hard Climb to Orbit 9-11 92

Fermi Observatory Measures the Lumps in Space 9-11 93

Calculating the Thickness of a Neutron Star Atmosphere 9-11 94

Chandra Sees the Atmosphere of a Neutron Star 9-11 95

Water on the Moon! 9-11 96

LCROSS Sees Water on the Moon 9-11 97

Seeing Solar Storms in STEREO 9-11 98

STEREO Watches the Sun Kick Up a Storm 9-11 99

Calculating Black Hole Power 9-11 100

WISE, Hubble, Power Functions: A question of magnitude 9-11 101

Hubble: Seeing a dwarf planet clearly 9-11 102

SDO: Working with Giga, Tera and Peta 9-11 103

Asteroids and Ice 9-11 104

Hubble: The Changing Atmosphere of Pluto 9-11 105

Grades 11 to 12

Estimating Maximum Cell Sizes 12 55

A Simple Model for Atmospheric Carbon Dioxide 12 56

From Dust Grains to Dust Balls 12 57

From Dust Balls to Asteroids 12 58

From Asteroids to Planets 12 59

The Higgs Boson and the Mystery of Mass 12 60

The Energy of Empty Space 12 61

The Volume of a Hypersphere 12 62

The Internal Density and Mass of the Sun 12 63

How Many Stars are in the Sky 12 64

Lunar Crater Frequency Distribution 12 65

The Rotation Velocity of a Galaxy 12 66

How Many Quasars are There? 12 67

Deep Impact Comet Fly-by 12 68

WISE; F(x)G(x) – A tale of two functions 12 106

Exploring Power-law Functions using WISE Data 12 107

The Ares-V Cargo Rocket 12 108

Hubble Spies Colliding Asteroids 12 109

LRO Spots A Rolling Boulder on the Moon 12 110